SOLUTION: sin(pi/2)-x

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Question 449544: sin(pi/2)-x
Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
sin[(pi/2)-x]
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= cos(x)
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because x and (pi/2)-x are complementary angles.
If A and B are complementary angles, sin(A) = cos(B)
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Cheers,
Stan H.
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