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You are not logged in. #1 20051031 06:10:43
Trigonometry helpHi there, I am studying Trig at the moment and am a bit confused by this question i have been asked: #2 20051031 06:42:01
Re: Trigonometry helpYou're on the right lines. cos = adj/hyp and sin = opp/hyp, so cos² = adj²/hyp² and sin² = opp²/hyp². So cos² + sin ² = (adj² + opp²)/hyp². Why did the vector cross the road? It wanted to be normal. 