- #1
Andrax
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- 0
Homework Statement
prove that sin^2(a)=sin^2(b)+sin^2(c) if and only if ABC is a right triangle in A
i worked really hard on this one I'm really confused why i didn' get the answer
Homework Equations
The Attempt at a Solution
a+b+c=pi
tried turning everythng to cos 2x didn't helpi really couldn't do this one, can't use complex numbers by the way...please help