integral dari 4 cos (3x-3) dx

Integral Fungsi Trigonometri.

∫ 4 cos (3x - 3) dx = 4 ∫ cos (3x - 3) dx
u = 3x - 3
du / dx = 3
= 4 ∫ cos u du / 3
= 4/3 sin u + C
= 4/3 sin [3(x - 1)] + C