SOLUTION: Differentitate: y=3+cos 2x Is it -2 sin 2x? Thanks .

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Question 27854: Differentitate:
y=3+cos 2x
Is it -2 sin 2x?
Thanks .
Answer by Sridi(6) About Me  (Show Source):
You can put this solution on YOUR website!
Yes... you are right.
d%28y%29%2Fdx = d%2Fdx (3) + d%2Fdx(cos2x)
dy%2Fdx = 0 + (-2sin2x)