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

Question 27854: Differentitate:
y=3+cos 2x
Is it -2 sin 2x?
Thanks .

Answer by Sridi(6) (Show Source): You can put this solution on YOUR website!
Yes... you are right.
= (3) + (cos2x)
= 0 + (-2sin2x)