SOLUTION: Given that sinA=1/2 , find the vlue of sinAcos(90degree-A). im lost..

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Question 225831:
Given that sinA=1/2 , find the vlue of sinAcos(90degree-A).
im lost..
Answer by chibisan(131) About Me  (Show Source):
You can put this solution on YOUR website!
Given that sinA=1/2 , find the vlue of sinAcos(90degree-A)

cos(90degree-A) = sinA
so
sinA*sinA = 1/2*1/2 = 1/4