Jawabanmu

2014-07-17T09:30:26+07:00
F(x) = 3 sin 2x 
f'(x) = 3x2 cos 2x
      = 6 cos 2x

2 3 2
2014-07-17T09:30:42+07:00
F(x) = 3 sin 2x
f '(x) = 3 cos 2x . 2 = 6 cos 2x