SOLUTION: Prove the identity : sin[(pi/2 - x ) + y ] = cos (x - y)

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Question 1011260: Prove the identity : sin[(pi/2 - x ) + y ] = cos (x - y)
Answer by solver91311(24713) About Me  (Show Source):
You can put this solution on YOUR website!


Use the sine and cosine of the difference of angles to assure yourself that and . Then:







John

My calculator said it, I believe it, that settles it