Why are highschools teaching basic trigonometry such as,
"find sin2b if tan b = -3/4 and cosb > 0"
My little brother brought this home, This shit is for like middle schoolers, do other countries really not understand trig.?
you must be so smart
I bet your an incredible wealthy inventor or
an incredibly smart researcher who has contributed invaluable resources to their field of study
>>7794597
offtopic
>>7794594
>>find sine of b.
(hint it's an easy as fuck Pythagorean triple)
>>>use double angle formula to find sine of 2b
there ya go faggit
>>7794594
>my little brother
Yeah, okay man.
