Geometrical problem

Simple expression is needed.

>>7722261
i think you can use the law of cosines..?

Do you know how to solve it? I need your mind power, dear scientist!

Let the third angle be gamma. Then a/sin beta = b/sin gamma. From this it is easy to solve for gamma. Then alpha is 180 degrees - beta -gamma.

>>7722291
Complete expression is needed.
Are theese steps right?

Pi - /alpha - /beta = arcsin(b sin(/beta) : a)
/alpha = -Pi + /beta +arcsin(b sin(/beta) : a)

File: 14499140345140.jpg (39KB, 349x450px) Image search: [Google] [Yandex] [Bing]

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Could you help me?

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Please.

/ADV/

Jesus christ i learned this in middle school you fucking autist
Google law of cosines

a/sin(beta)=b/sin(gamma)
solve for gamma
alpha=180-beta-gamma

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>>7722564
>>7722582
Are you kiddin me?
Full expression, not this bullshit about sin-cosine theorems. Excplicit formulae is needed, not that BULLSHIT.

>>7722629
cosine law IS an explicit fucking formulae
c^2 = a^2 + b^2 − 2ab cos(C)

you just need to use sine law first to find side c so you can use it with cosine law, and if you need an explicit formulae for sine law then you're a fucking lost cause anyway.

I'd suggest to stop all attempts to assist this imbecile.