SOLUTION: Use the Angle sum identity to verify: Question #1. sin(x+(pi/2))=cos x

SOLUTION: Use the Angle sum identity to verify: Question #1. sin(x+(pi/2))=cos x

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Question 1036927: Use the Angle sum identity to verify:
Question #1.
sin(x+(pi/2))=cos x
Answer by ikleyn(52781) (Show Source): You can put this solution on YOUR website!
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