Jawabanmu

2014-04-12T11:50:52+07:00
f(x) = sin3x + cos 5x
f'(x) = 3 cos 3x - 5 sin 5x
2014-04-12T12:15:58+07:00
F(x) = sin(ax+b) ⇒ f'(x) = a cos (ax+b)
f(x) = cos(ax+b) ⇒ f"(x) = -a sin (ax+b)

f(x) = sin3x + cos5x
f'(x) = 3 cos3x - 5 sin5x