SOLUTION: Express as a single sine of cosine function: a) 6sinxcosx b) 1-2sin^2(x/4)

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Question 196591: Express as a single sine of cosine function:
a) 6sinxcosx
b) 1-2sin^2(x/4)

Answer by Alan3354(21605) About Me  (Show Source):
You can put this solution on YOUR website!
Express as a single sine of cosine function:
a) 6sinxcosx
= 3sin(2x)
-------------
b) 1-2sin^2(x/4)
= cos(x/2)