If you are not intelligent enough to solve this integral by hand without any software, you are not smart enough to have us believe any of your political opinions
>>77647022
Brb gonna try it
>>77647022
Different races have different average IQ's, genetically.
That means we literally can't do anything to solve societies inequalities. No amount of welfare, education, affirmative action, tolerance will change the fact the blacks have a 85 IQ average and commit massive amounts of violent crime.
This single-handedly changed my perspective on what government should be doing to address these problems in society, and forced myself to listen to different viewpoints that I would normally brush off as "retarded right-wing trash."
math is for nerds
>>77647022
>>>/sci/
Tanx^1/2
3/2tan^3/2x
3/2tanxsqrttanx
Fucking pleb tier high school shit
>>77647342
You are fucking retarded
>>77647342
> you're wrong. Take the derivative of it for proof.
>>77647342
BAHAHAHAHA
I agree. And this is why the majority of women and minorities need to have their freedom of speech revoked.
The CIA must love all you canadian faggots doing all the sliding for them.
>>77647572
>>77647595
>>77647640
>falling for it
Lmao it's like you guys are actually trying.
No one's actually retarded enough to give that answer.
>>77647342
Calc 2 is high school shit?
>>77647022
just u-sub? what's so hard?
also i can tell you that that integraes to something really messy
>>77647022
I see "tan" and I know our official board-tan is /lgbt/ whats the rest?
>>77647847
>thinking I fell for it
>>77647022
Y=tan(x)
dy=sec^2(x)dx
dx=cos^2(x)dy
int(sqrt(Y)cos^2(x)dy)
(2/3)Y^(3/2)*cos^2(x)
=2/3*(tan(x)^(3/2))*cos^2(x)
or something
who knows, you rarely do any integration outside of quadratic exponential and cosine
>>77647022
>I know maths
>therefore I'm good in politics
That is a prime example of how fucking arrogant and ignortant you math-nerds are. It has nothing to do with the social hierarchy and how to help it.
Tell me, why are there different colored people on earth? Why do we have Whites, asians, blacks, lations, arabs etc? Answer that question based on knowledge.
Isn't that more related to politics?
Why can't you tell me how to negotiate peace in Cuba via math equasion?
You're so narrow-minded.
Everything has its shades.
>>77647935
I did this in 11th grade. I forget the identities you need to solve it now, but it's not difficult beyond that.
>>77647022
numerical integration master race
just give it up, anon, because you will eventually meet integrals without closed-form solution.
>>77647205
To bad race is geneticly unreal and you are just spewing bull shit
>>77647022
can you even solve it without applying a memorized formula?
lol, are you still trying, op?
>>77647022
Tan x= sin x / cos x
u^2 = tan(x)
2u du = sec^2 x dx = (u^4 + 1)du
So sqrt(tan(x)) dx = Integral 2u^2/(u4 + 1) du
It gets a lot nastier from there.
>>77647205
The thing is, why should different races being more or less intelligent make you more right wing?
That would be like going up to a cripple and kicking him in the legs and mocking him for being crippled. I'm leftwing and I don't rule out blacks maybe being less intelligent. If they are, we should be compassionate and look at researching gene therapy to reverse the problem.
>>77647022
i see you re trying to reduce tan --> tanorexic faggots and niggers, yeah killing niggers is always right
>>77647022
When has calc ever been useful in politics. Just another shitpost from a leaf.
Oh my God. It's not a meme anymore.
I just had to check out the flag. I saw what I expected. That fucking leaf.
What is wrong with America's Hat? Are all Leafposters hooked on spice?
>>77648554
>That would be like going up to a cripple and kicking him in the legs and mocking him for being crippled
My sides just died
I'm probably smart enough to do it, but I fucking hate math so I didn't bother to learn it.
I guess I could say "If you're not smart enough to tell me the difference between the ethical views of Kant, Hegel Mill, and Nietzsche without looking them up, you shouldn't be allowed to vote."
Most people would be like, "wait, I'm just supposed to know this off the top of my head?"
It's how I can tell you're still in school, too. College kids don't realize how quickly your rich, deep worldview goes back to normal once you get out of your little play pen.
>>77647022
so we shouldnt believe what hillary says... or merkel or le weed man or obama
got it. trumps iq is higher than clintons. thanks for setting us straight leaf. every one become trump drones
If you are not intelligent enough to ascertain what this function does without compiling it, you are not smart enough to have us believe any of your political opinions
>>77647022
Back to /sci/ you fucking faggot
Everyone in this thread is browsing /pol/ on a Friday night as some kind of penance for sins in a past life, but YOU
you're the only one trying to make it an intellectual exercise.
>pic related
>>77648554
If you look under a microscope, you can see the homogeneity and by the specific formation that European stock is distinct from middle eastern stock. Even though many haplogroups and traits white people have originated in the middle east a long, long time ago.
>>77649031
Is that Carmack's fast square root algo?
>>77648554
>>77648909
nigger crime rates are really high, they shouldnt be allowed to have guns and should be kept in their natural habitat (apefrica) or in a zoo but not on the street pls
>>77649023
> le ' im smart but lazy' meme
That's every dumb kids excuse
try this one faggots:
jsdsj 2o323 dskdsdk
IF YOU CANT SOLVE MY SEMIOTIC RIDDLE YOU'RE LITERALLY RETARDED
Intelligence directly correlates with insanity
I don't want psychopaths voting and leading
>>77647022
>Tfw civil engineering
>Tfw just graduated 2nd year
>Tfw all math reqs done
>Tfw I will use numerical methods or software for anything slightly complicated for the rest of my life
>>77647022
It's obvious this dumb shit just learned how to integrate and now thinks he is smart. I forgot that shit over a decade ago because its god damn worthless in everyday life
>>77647022
I have a degree in math, work in a STEM field earning over $100k and have never needed to have this stuff memorized except for doing exams. It proves nothing about intelligence.
>>77649272
No, I'm smart but I focused on philosophy, cognitive science, and software development.
Math is boring as fuck.
>>77647022
What the fuck bearing does math have on politics, Chang?
>>77649214
It's just Americans really. I live in a very black neighborhood in the UK and it's fine. You don't even notice race around here.
Shitty black US culture + guns = disaster.
>>77648831
I think calculus should be a College graduation requirement
Maybe not a fullon math course, but to teach the general concepts
Its so fucking useful, even with day-to-day things
>>77647342
where's your u substitution faggot
>>77648337
How is "why we have different races" related to politics you fucking retard? It's science
>>77649170
inverse square root.
Using only a single iteration of newtons method if I'm not mistaken.
>>77649362
exactly. I am a civil engineer and you basically dont need ever need this
>>77647022
i can't do it
>>77649170
Yeah, but Carmack didn't invent it.
The answer is (-2*atan[1-sqrt[2]*sqrt[tan[x]]]+2*atan[1+sqrt[2]*sqrt[tan[x]]]+ln[1-sqrt[2]*sqrt[tan[x]]+tan[x]]-ln[1+sqrt[2]*sqrt[tan[x]]+ tan[x]])/(2*sqrt[2])
>>77647022
>muh opinions
You're a retard anon, and no-one cares about you.
>>77647022
>i think i am so smart because i took calc 2
>but not smart enough to not be a cuck
>>77647683
>I agree. And this is why the majority of women and minorities need to have their freedom of speech and ability to talk revoked.
Amended
I could probably solve it but I don't remember what tan() does, what the 'd' represents and I don't know what the symbol on the left is.
>>77647022
if you can't read this and write 10 page thesis you probably can't spell either:
If your political by hand without any of you are not smart enough to hand without any software not smart enough to hand without any software not intelligent enough to solve any of you are not smart enough to hand without any of you are not smart enough to software, you are not intelligent enough to software not smart enough to hand without any of your political opinions If you are not intelligent enough to have this intelligent enough to have us believe us believe us believe this intelligent enough
>>77647022
But solving that in modern education is simply rote memorization of trig function integrals. It is the first half of cal2. I can prove it if you want but that is much higher level math. Anyone who finished freshman calc should have memorized that though.
>solving integrals by hand
>in the era of WolframAlpha
>in order to brag about mastery of high-school level mathematics
OP has never kissed anyone that is not a family member.
>>77647022
I forgot because I never needed to use this. If I need to know one day, I can just look up how to integrate tan again.
>>77647022
If you're retarded enough to waste time trying to solve that by hand, then you still need some more years in college.
>>77649427
they still b savages in apefrica, and no drugs or jew made culture there
>>77649362
Mechanical designer here, can comfirm. Most of my work is copying other people work from years ago and making it cheaper or better.
even if you work in Bombardier or Dassault making aircraft, you let CATIA do the math for you.
![descartes-meditac3a7c3b5es[1].jpg](https://i.imgur.com/kejMtt8.jpg "descartes-meditac3a7c3b5es[1].jpg")
>>77649766
looking at that gif, I know what the d represents
Pic related
>>77647022
Start with an u-substitution, transform into a rational function, decompose into partial fractions, integrate the new parts and then back substitute. I won't even bother writing the answer here, too long.
>>77649766
>not knowing what dx stands for
>>77647022
kek you think people who bother to remember this shit are capable of political debate based on this alone?
End self
u substitution to make it ∫ sqrt(u)/(1+u^2) du
then integration by parts
it's easy as fuck
Let's separate the patrician wheat from the non-voting chaff:
You're on a game show, and you know one of these three doors has a car behind it. You picked the second one, and the host opened the one on the far right to reveal a goat. He offers you a chance to switch to the other unrevealed door... should you?
>>77649766
If you don't know what dx is you don't know how to solve any integral
dx means that the equation has undergone a derivative. It's generally forgotten about when doing integrals
>>77650548
Take the goat.
If you're autistic you shouldn't be able to vote. Sorry 4chan, you can't vote now.
>>77650548
Switch.
You have a 1/2 chance of getting it if you switch, but only a 1/3 if you don't.
>>77650548
Obviously. It's a 2/3 chance that you will get the right one that way. Anybody saying 50/50 is logically incompetent
>>77650138
Lots of Africa is getting middle class right now. And India, not Africa, is the poorest and shittiest place on Earth.
I'd trust my black neighbors over some shitty whites in South Wales any day.
Logic, experience and common sense says the US nigger problem is a cultural issue, not something you can pin on all blacks in the world. I'm open to evidence both ways, but that's my conclusion so far.
>>77650650
trade it off to your muslim neighbor in exchange for 3 years of no butt raping.
>>77648337
>Why can't you tell me how to negotiate peace in Cuba via math equation?
>>77650548
Doesn't make a difference.
>>77647022
nigger if you're trying to seem smart to impress all the big boys you can try something a little bit more difficult than fucking calculus
Fuck you.
https://www.symbolab.com/solver/step-by-step/%5Cint%5Csqrt%7B%5Ctan%5Cleft(x%5Cright)%7Ddx
Intelligent people don't waste time learning how to jump through hoops like this. I did it for school because it was required. I also understand all the logic behind every step in the solution. But I haven't trained myself to be a trick-performing monkey in some time. The only reason you would try to have a highly intimate understanding of how to mechanically pump out integrals is if you're trying to be a new memester, discovering new integration techniques that are superior.
You won't do this. And I don't expect I ever will either. Thus, computers know most of what I understand and can act as a copy of myself, doing everything I would in a fraction of a second. If a computer doesn't know it, I have also trained myself to write scripts so that I can make a computer instantly pump out the answer I need as if it were me. I use the computer as if I were a cyborg and it was accelerating my mind. And that's what modern humans essentially are - we just interface with our robot parts using fingers instead of brain signals. And thousands of your competitors do the same thing. Fill your mind with useful information. Learn useful skills.
>>77650548
Switch because the puzzle is based on statistics.
>>77650862
you are the one with the muslim neighbor m8, unless you were referring to canada :^)
>>77647022
Solving this shit requires memorization of identities and that's only practical for school and never useful irl
>>77651294
*second semester calc, not even diffeq or a proof lol
literally first year shit
>>77651306
Muh crutch
>>77648347
If they didn't teach you how to solve without identities, they really didn't teach you shit at all.
>>77650723
>>77650724
who do i believe, /pol/?
>>77651063
Your right to vote is hereby revoked :^)
>>77648554
>I don't rule out blacks maybe being less intelligent.
Why are you in such a hurry to have them flood the western world then?
>>77648337
That's one of the biggest problems of modern society we let people with broken brains run our society. They can solve integrals but can't handle small talk. They make economic models and then wonder why humans behave like humans.
Kim Peek could memorize two pages at once but couldn't buy himself food.
Math's great. My Grandfather was an autistic savant (church found him a wife) but no one wants him running any social organization.
>>77650140
Embraer?
If so, do you know if they have any project to make these fuckers more reliable on the mist? Fucking CWB airport is always closed...
>>77650724
It is, in fact, 50/50 odds when the switch is made.
>>77652019
You don't have to be an autistic savant to solve this integral. You only need to take learning seriously.
>>77650769
u aint gonna jew anyone, niggers cause troubles wherever they go, here in spain there is a over 9001^1413532 media blackout about it, i never ever saw the tv saying a nigger did something bad yet on the internet you can find tons of news of nigs psychochimping out
>>77647022
>actually trying to do this integral by hand
wew lad
>>77647022
lol I haven't had to remember trig identities since freshman year. there's no reason to memorize something that you'll never use
>>77647847
>I was only pretending to be retarded
>>77650548
Stay on because the revealing of the goat did not change the odds of the car being behind either other door at all
>>77647022
I sincerely believe if you can't name at least 3 constitutional amendments, you really are in no position to vote.
>>77652409
This problem isn't about trig identities, and does not require any memorization other than the definition of the tangent function.
>>77652019
Thats because only autists are confident/crazy enough to think they can run peoples lives better than the people can.
Normal people are to busy doing small talk with their retail boss to consider whether or not the company policy for returns could be made more efficient by removing step 5 and swapping step 3 and 6.
>>77651681
Who says I want anyone to flood anywhere? But I'm not against immigration, as long as people integrate culturally. That's the important thing.
There's plenty of evidence any innate difference in IQ is not that great. Black girls are the highest performing group in schools, did you know that?
>>77650586
>It's generally forgotten about when doing integrals
nigga wut
that is the most important shit
Your differential element is absolutely critical for anything
>doing useless integrals for no reason
i remember handing in an assignment for diffeq and it involved some retarded integral that i didnt want to solve and so i just used wolfram alpha and wrote right next to it (USED WOLFRAM ALPHA) and the prof said okay.
I got full marks.
>>77652171
It's not. Extrapolate to 100 doors. You pick one, the host opens 98 of them and offers a switch. Do you really think the odds become 50/50?
>>77652033
Nah, I don't work there myself, can't help you my fellow hue, are Embraer planes unreliable in misty conditions ? didn't knew that, as far as I know they make good planes.
>>77652564
no quartering solders during peace time.
right to have secret clubs that plot against government
Right to call the king a poofter.
Do I win?
>>77649588
>>77649618
also a neat floating point hack because floats are stored in scientific notation making it easy to manipulate powers and stuff.
>>77652678
Thats retarded. Its more likely at that point that he opened the one with the car behind it than not. So I would just switch to that door giving me 100% chance of getting the car.
If he didnt reveal the car, then it is still 50/50 between the two remaining doors.
>>77652651
I meant when you actually solve it, nigger.
>>77647022
>it's kids brag about useless math they have learned in class today episode
>>77647022
>solve this integral by hand without any software
Shit, it's been well over a decade since I've done any calculus.
>you are not smart enough to have us believe any of your political opinions
Did you fail Logic 101?
>>77647022
tanx=senx/cosx
senx=-du
cosx=u
integration (-du/u) = -ln|u| +C = -ln|cosx| + C
>>77652918
Switching is only bad if you initially picked the car. In the 100 door scenario, that's 1/100, and in the three door scenario that's 1/3.
>>77652947
There's a square root Brazil come on.
>>77652947
didn't notice the square root lol
>>77650548
The idea that switching your answer improves your odds is faulty math that stems from the assumption that the first door opened never contains the car. If you account for that possibility the odds even out
thank gods for mathcad
I'd blocked this type of shit from memory
>>77652678
Oops, I misspoke. it's actually a 2/3 chance you get the prize if you switch doors. this is fact. no belief needed
160 IQ here
sec^2(x)/2sqrt(tan(x))
>>77653166
50% odds are still greater than 33% odds
>>77653166
> faulty math that stems from the assumption that the first door opened never contains the car.
It's the whole point of the exercise. If the host reveals the car, when are you going to get a second chance to switch?
>>77653284
>cringe
>>77653166
No you dummy. There is a 1/3 chance of your initial pick being correct. This means there is a 2/3rds chance of the car being in one of the other two doors. Since one of the other doors is revealed to be a goat, then there's a 2/3rds chance the car is in the remaining door that you didn't initially pick.
>>77653150
>>77653092
>not solving the equation
I cant. At least not right now. Im drunk, in the bath and dropped out of school 7 years ago.
>>77653166
Perhaps you should read about it. It's called the Monty Hall problem. If you're shaky on the math, conduct several (30+) trials and you will see the odds are indeed favorable when the switch is made.
>>77653326
If the host reveals a goat behind the first door, you now have a separate smaller problem with 2 doors instead of 3. It doesn't matter which one you pick, you have 50/50 odds at that moment in time
>>77653470
>you now have a separate smaller problem with 2 doors instead of 3.
You're discarding information. These aren't separate events.
>>77653009
But its not beneficial either.
>>77653420
>then there's a 2/3rds chance
nope
>>77650586
What I'm saying is, I haven't done that shit in years and have forgotten how but I remember that I used to be able to do it.
>>77653544
Why don't you math?
I don't know math thats why I'm a political science major
>>77653420
The odds that the car is behind the other door increase, but the odds that the car is behind your door also increases
In statistics, every subsequent choice you make is independent of the previous choices. It doesn't matter how many times I got heads before, my chances of getting heads the next time are still 50/50
>>77647022
>leaf
>'look at how smart math makes me'
Not only is it virtually a guarantee that OP is Asian, 99% he's Chinese.
>>77653452
You don't want to solve that integral by hand. It probably takes a million steps and would be a pain in the ass.
>>77647935
Calc I and II are AP maths in the US. In my school we did IB maths HL which is the equivalent of Calc II and our options topic extended it to a few Calc III topics.
>>77652706
No plane is reliable here. Our airport was made during the cold war for the army, so they built it in a heavy mist area to hide it.
>Cold war
>Curitiba
Fucking american engineers man, they were a bunch of schizophrenics
>>77653452
>put the integration in wolfram alpha
>saw the result
>not doing this shit nigga
I'm a math grad but I forgot most of the tricks used to find primitives of particular functions, except for the most common ones, doesn't mean shit, I can probably rederive those if I need but most people in the field who aren't dealing with babby's first calculus every day are just going to look up some tables when they need it, it's fairly pointless to brag about being able to remember simple tricks.
>>77653641
I do math
I'll have my masters in mechanical engineering around this time year
I'm still hoping you're just trolling with that 2/3rds nonsense
Something something 1/(1+x^2)
Substitution arctan something
>>77652621
niggers and sandniggers never will integrate culturally, and there is proof that in school and universities the eternal kike will give niggers stuff and grades for free, stop treating niggers like as if they were animals that would go extinct in 2 years
FACT: - Though only 12% of the population, Blacks take 38.3% of the total of all welfare payments. Whites are 72% of the population, and take 30.5% of the total.
http://aspe.hhs.gov/hsp/leavers99/race.htm#fig1
FACT: - Though only 12% of the population, Blacks take 38% of taxpayer-subsidized housing
http://www.huduser.org/datasets/assthsg/statedata96/descript.htm
FACT: - Blacks are responsible for 40.8% of all domestic violence cases, despite being only 13% of the population.
See page 28:
http://bjs.ojp.usdoj.gov/content/pub/pdf/vi.pdf
FACT: 28% of Black males go to jail, vs. 4.4% of White males.
http://www.ojp.usdoj.gov/bjs/crimoff.htm
FACT: - Blacks are four times more likely than Whites to kill their children
http://bjs.ojp.usdoj.gov/content/homicide/children.cfm#kidsrts
FACT - Blacks "were 7 times more likely than whites to commit homicide in 2005"
http://bjs.ojp.usdoj.gov/content/homicide/race.cfm
Fact is black teens comprise only 15 percent of all U.S. teenagers but were 70 percent of all news AIDS diagnoses in 2012, according to CDC
http://www.louisianaweekly.com/hivaids-take-heavy-toll-on-black-youth/
>>77647022
Math is for fucking Jews.
I got an MBA and made ~$107k last year by ordering faggots like you to do the math for bread crumbs.
>>77653757
Read about the Monty Hall problem.
>>77653751
The intelligence comes from being able to derive it.
You sound mediocre.
I'm mediocre too
>>77653761
Finally, someone who talks sense...
>>77653667
>The odds that the car is behind the other door increase, but the odds that the car is behind your door also increases
No this is complete nonsense.
>In statistics, every subsequent choice you make is independent of the previous choices.
These are not independent events; in fact there is only one event strictly speaking.
Here you go, you fucking tards
https://www.wolframalpha.com/input/?i=sqrt(tan+x)+dx
You need to be a über autist to solve this shit by hand.
>>77647022
>Spending time on something you'll never use
C U C K
>>77653166
Look at it this way: Imagine there are 100 doors instead of 3. You pick one door, then the host opens all of the other choices, except for one door somewhere in the line. Suddenly that unopened door sticks out massively and it becomes clear why you should switch your choice to it.
>>77653751
If you're a math grad then you should realize that this tests problem-solving capability, not memorization. The only memorization required here is the definition of the tangent function.
You'd have to be an autist to do to solve that integral by hand. - someone with a degree in economics and math.
solution (w/ steps): https://www.symbolab.com/solver/step-by-step/%5Cint%20%20%5Csqrt%7Btan%20x%7D%20%5E%7B%20%7D
If you are not intelligent enough to solve this problem by hand without any software, you are not smart enough to have us believe any of your political opinions
>>77647342
What is change of variable ?
>>77647342
As someone who understands calculus, pic related.
>book smarts=common sense
>>77654028
>those partial fractions
JUST
>>77653822
I don't care about US niggers. Here in the UK those stats don't apply at all.
>>77654019
But here again you are making the assumption that the prize is not behind the doors the host opens.
The only way the math works out is if you make that assumption. If the host deliberately opens doors that don't have the car behind them, you're right. If the host opens doors at random, then the odds even out
>>77654028
That isn't very useful. It has way too many steps than are required. It's easier to just grow up and learn how to do shit even if you think you'll never "need" to know it.
>>77653876
Maybe, but even a math professor in, say, algebraic topology, is probably going to forget the trick himself due to not dealing with that shit often and will have to either spend some little time thinking about the right substitution, or simply look up a table. It can be pretty fun to rederive stuff that you probably once saw your professor derive for you but simply being able to solve the integral is not by itself impressive, any calc 101 student about to take an exam would've memorized the right substitution.
>>77654027
see above
>>77654177
>But here again you are making the assumption that the prize is not behind the doors the host opens.
Nobody is making that assumption you dumb nigger. Learn some probability.
>>77648337
Math is a form of logic. If you're better at math, chances are you're better at reasoning in general.
>>77654028
Brazil did it first.
Again :^)
>>77647022
tan(x)^(1/2)
(3/2)tan(x)*2 * integral(tanx)
(3/2)tan(x)*2 * -ln|cosx|
-3tan(x)ln|cosx| + c
idk, i might be wrong. im not in fucking calc II anymore.
>>77654028
It's basic calculus dude.
>>77654241
Memorization is not efficient.
>>77654271
If the host opens doors at random and none of them have the car behind them, chances are you picked the right door
However if you know that the host deliberately doesn't open doors with the prize behind them, then you're right it's a higher probability for the unopened door
>>77647022
>Look mom! I can do Calculus 1!
>>77654300
are you trying to pull a variable out in front of the integral sign???
>>77654370
>host opens the door at random
Literally no. That's not how the game works. The host always opens the door with the goat or some shit in it. Nobody accidentally opens the door with the car.
>>77654361
Ya it is. Even if it gets fuzzy over time, you've gotten an intuition that most won't have.
>>77649766
She's pretty, but she still has to go back.
>>77654080
if the top and bottom are parallel, that figure is impossible.
>>77654302
my god maisie williams is ugly.
>>77654300
>(3/2)tan(x)*2 * integral(tanx)
wew lad
>>77654472
This is what I've been saying from the beginning.
The math only works out if you assume the car is never behind the first door. This is literally what I've been saying and people have been jumping down my throat
>>77654525
It's a mild shoop retard.
I literally have a degree in maths and I've got no idea how to solve this
>>77654575
Again no you dumb nigger. The assumption is that the host always opens the door without the car (which is true; that's how the game works).
>>77654302
That reaction was perfect 10/10
>>77647022
bullshit. maybe you can understand that shit and im not. but ive more social interaction than you and i can more understand what political means.
Go fuckyourself OP, Math is life but math isnt pol
>>77654361
sure but when it comes to exams where you need to be fast, reinventing the wheel for the sake of it ain't gonna do you any good
ITT: 2 or 3 people who can do calc II and understand the Monty Hall problem
>>77654635
I have a physics degree and I didn't know right off the bat.
It's a very obscure u-sub problem, one not normally seen in higher level mathematics, which usually devolves into abstract logic rather than specific integration techniques. Usually if you want an integral solved you just do an approximation, or if you need an exact answer you run it through Wolfram
>>77654707
Let me rephrase that...
Memorization is not efficient for learning to be good at problem-solving.
>>77654635
You "literally" have a degree in math? I literally have degree in english, that's how I can always tell that none of you egg-heads know how to write or speak properly.
>>77647022
But being unintelligent is not the same as being ignorance. If you're not smart enough to have realized that by yourself, then your political opinions aren't worth listening to.
>>77654818
>2 or 3 people who just finished calc II
FTFY, no one remembers that shit past freshman year
>>77654975
>taking the bait
>>77654876
Literally nobody besides some calculus autist would know this integral off the bat. The solution is absurd.
4th year EE here, eat my ads OP
>>77654938
and who said otherwise? you remember stuff in order to be faster at doing shit
in particular, remembering the tricks behind these integrals is going to save you the thinking if you just need the damn integral computed
This integral is a nightmare, you need to substitute and integrate by parts over and over
>>77655073
what is the integral of infinity?
>>77655008
>one or two people who just finished calc II, and one who still get it 10+ years later
FTFY
>>77655215
infinityx + C obviously
>>77649427
blacks fill your prisons at almost exactly the same rate compared to their % of your total population.
Don't pretend like it's an American culture thing.
Now try this
>>77650887
underrated
>>77647022
>equating knowledge of facts to fluid intelligence
well, you've proven to me that you're not smart enough to believe in.
>>77647022
Just tried it with numerous u and v substitutions, it goes on for a long fucking time. I'm pretty sure this would take a long fucking time to do by hand.
>>77647769
CIA is on our side, homie.
>write tan in terms of exponentials
Trivial arithmetic op. You should be embarrassed to think this is complex.
>>77647022
>math equations and politics are the same thing
>this is what autists actually believe
Just because you haven't the slightest clue as to how to interact with people doesn't mean they can be fit into an equation and solved like a puzzle.
Maybe you're not smart enough to know the difference between knowledge and intelligence.
If you can't name the DCI show (and year) this lick of music came from, you don't deserve a political opinion.
Hey I can do that too, I can take something that had nothing to do with knowing politics and say u can't have an opinion if you don't know it.
>>77647022
>muh calculator
I can get a computer to do that for free
>>77655663
>Let me place a trick a question in here with arithmetic tricks and manipulations, clearly this shows how much of a fundamental understanding of calculus concepts you have.
Its not complex, it just takes a long, long time to do.
>>77655680
>not even giving one full melody
You're a cruel person.
>>77651612
The smug canadian shit flag representing some resemblance of intelligence.
>>77649766
>he doesn't know about Lebesgue measure
>>77654548
>Being this retarded
>>77655952
Pathetic here I made it easier also here's a hint
>The judges where bias
>>77650548
Keep the goat. The car can't pleasure you the same way.
>>77653827
I'm 6'4" with a 9 inch dick making 200k a year as head chef at a Wendy's I own.
>>77652678
I used that example once. Best way to explain this type of scenario.
>>77647022
>underage b&
I haven't done a single equation with tan/sin/cos since I did math analysis in high school. Stop trying to get /pol/ to finish your homework for you, gayboy.
>>77655601
>he doesn't know about partial fractions substitutions
This has nothing to do with intelligence lol. You have been trained in how to answer this. Next you'll be saying that gooks are smart.
>>77656792
>Implying thats not how I started manipulating it.
It takes a shit ton of time to do.
i got all the way thru master's level electrical engineering math once.
you know what i'd do now? integral tables. because not autist.
>>77655452
Fubini and FTC senpai
Oh look how smart op is since he's currently taking calculus.
Son, once you have a profession for a decade or so which doesn't regularly use it, you will forget it.
Not all technical professions use it regularly, and the highest paying jobs never use it.
You think CEOs sit around solving the same dumbass calc problems all day to stroke their ego?
>>77647022
What does this have to do with intelligence? I know legit idiots with 70-80 IQ's that got an A in calc by putting in 3 hours a day.
Your typical moron can succeed in college if they put in the work.
>>77647022
= (1.5tan(x)^1.5)/(-log(cos(x))) I think
>>77656993
Really? It took me like two substitutions and one partial fractions decomposition. Non-gimmicky (e.g., muh symmetry) trig integrals can get shitty but this one isn't too bad. That is unless I fucked up somewhere.
OP, does there exist a surjective polynomial function R^n -> R_{>0} for some positive natural number n?
>>77656895
This is some next level shitposting.
Let's analyise this statement:
1.Obviously the poster thinks that solving this requires intelligence.
2.He makes a true statement which should invalidate 1. but just partially.
3.He puts in a sentence that is hard to interpret but obviously the poster is a gook or a gook lover because he puts a racist statement into something that most people with a certain type of intelligence would agree to therefore he wants to signal "gooks are intelligent". But he does it in a smug way and thinks people wont notice his extreme smugness.
So this poster is either a australian shitposting genius or a math nerd of asian decent or someone that has a need to defend gooks because they are good at maths (which indicates that he has a stem background or would be stem background).
Math is memorization. The people who came up with the different methods are the geniuses, not the lemmings who follow in their footsteps.
STEM here, literally anyone can learn this stuff given proper teaching and time
>>77657495
No.
>>77657624
Are you sure? Do you have a proof?
>>77647022
op posts a problem from his calculus class he just learned to solve
THIS IS WHY MARXISM IS THE ANSWER
/thread
>>77647022
That is like calling a non-English speaker dumb for not being able to read "difficult" books written in english. One cannot intuitively understand what those symbols mean.
>>77650140
CATIA can do it all!
>>77657602
Anybody who has been through at least a year of calc should be able to solve this (possibly taking time to remember some standard tricks). Doesn't test innate intelligence since you need to have seen this material before to even know wtf OP's asking. Unless OP claims to be smarter than Newton.
In conclusion: OP is a fucking faggot.
>>77654145
What is your favorite chapter in Rudin?
>>77647935
If you have more than a pulse, yes. Most high-schools offer it as calc BC. I remember taking it my senior year but there were some ppl who took it as juniors. Out of a school pop of 1500 only 14 ppl besides me took the class that year.
>>77658161
Which Rudin? I like chapter 1 of Papa Rudin just because of how insane it is as far as first chapters of textbooks go. Also I believe it still contains the most general version of FTC.
>>77651306
There is some merit in memorizing some mathematical identities.
I've seen it come up a few times. Got me out of jams.
>>77650548
Nice trick question. Only a Kafir would not take the goat
>>77657495
>>77657685
For a polynomial (say f) to be always positive it must tend to infinity as the absolute value of its variable (say x) tends to plus infinity. Given this and the fact that polynomials are continuous, consider sets of the form S_a = {x | f(x) <= a}. These sets are closed by the continuity of f.
Suppose for the sake of contradiction that there were such a polynomial f that were surjective onto the positive numbers (and only the positive numbers) as you asked. Take a monotonic sequence of numbers that goes to zero from the positive side. For this sequence of numbers, there is a nested sequence of sets S_a as defined above. If f satisfies the hypothesis then all of these sets are nonempty, and since they are nested that implies there is a sequence of points x_n such that the limit f(x_n) goes to zero. Since these sets are closed, their intersections are closed, and so the limit of this sequence exists in the set. Call that limit X. since x_n --> X and f(x_n) --> 0, by continuity of f we see f(X) = 0. But this contradicts the hypothesis that such a polynomial could exist that is surjective onto the real number but never hits zero. -[]
>>77657495
OP where are you you fucking faggot. This question only requires basic precalc and tests actual creativity.
>>77658556
>These sets are closed by the continuity of f.
Meant to point out they are closed AND bounded.
/pol/ please don't tell me you are dumb enough to do someones homework for them
>>77658556
Nice try senpai, but I was asking whether there was an example from *R^n* to R, not just n = 1. Your proof seems wrong even for n = 1 since you don't use any property of polynomials. Also the intersection of closed sets could be empty...
>>77658028
I m curious, but i heard that in highschool you seperate into different levels of "calculus".
How does that work in detail, how does that count into your highschool diploma and how does that work in university. Because you need a certain background of knowledge in university otherwise you are fucked. Can you elaborate a bit more on american education? In germany we have a different structure. To get into university you need a certain diploma, it isnt the same for every student. In the USA most people get their highschool diploma, which is in a way "basic education" (no offence meant here).
>no limits of integration
>>77647022
i mean, i did calc 1 so i can integrate most equations, just not the cos,sin,tan stuff
i don't think that should tell how well versed in politics you are though, i'm majoring in space flight operations so i could easily make a thread talking about the outer space treaty and say "if you don't know the articles by heart your politics are shit"
>>77658975
>Nice try senpai, but I was asking whether there was an example from *R^n* to R, not just n = 1. Your proof seems wrong even for n = 1 since you don't use any property of polynomials. Also the intersection of closed sets could be empty...
Actually I used the facts that polynomials are continuous and the fact that a polynomial that is always positive must go to infinity as the magnitude of its variable goes to infinity. I think you should read the proof again there is nothing that restricts what I said to the domain being one dimensional. The range is one dimensional because that's what you asked.
And I'm not assuming the intersection of the sets is nonempty, but rather I'm using the fact that since the sets form a nested sequence and each set in that sequence is non empty, you can form a sequence of points (one from each set) that will converge to a limit point in R^n.
>>77658979
Most high schools have different levels of calc. Advanced students usually take "BC calc" (to prepare for the AP calc test or math subject tests). Very advanced highschoolers sometimes take math courses for credit in university. But on the other hand, it is possible to graduate from high school without ever having done any calculus before. Once you get to university, there are often placement tests to either test out of the required calc or place into a higher course in your first year. On the other hand, some (joke) universities don't require any kind of math to graduate.
>>77659367
Ah, I see. But still your sets S_a are not necessarily closed. (The set (0,a] is not closed, so f^{-1}((0,a]) isn't necessarily closed...)
I can solve it with a trigonometrical sustitution, but i'm lazy as fuck, so fuck this this, i pass this shit already.
