Question 626567
i was wondering if you could walk me through the process of how to evaluate: y= 1/2 sin (0 + Pi/2 ) 
to get the correct answer, which is apparently zero. 
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No, the answer is not zero.
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y = (1/2)sin(0+(pi/2)) = (1/2)sin(pi/2) = 1/2*1 = 1/2
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Cheers,
Stan H.
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