Okey, my homework is to show/prove that arcsin(-x) = -arcsinx! I can see it from unit circle but I dont know how to make a nice formula. thnx
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Originally Posted by tintti Okey, my homework is to show/prove that arcsin(-x) = -arcsinx! I can see it from unit circle but I dont know how to make a nice formula. thnx arcsin(-x) = A => sin A = -x => - sin A = x => sin (-A) = x => arcsin(x) = -A => -arcsin(x) = A. Therefore arcsin(-x) = -arcsin(x)