Question

Hitunglah: Integral 3e^x cos (1-e^x)dx ?

Answer 1

Verified answer

Jawab

u = 1 - eˣ
du= - eˣ dx
eˣ dx = - du

∫ 3 eˣ cos (1 - eˣ) dx = 
=  3 ∫ - cos u du
=  3 ( - sin u ) + c
= - 3 sin u + c
= - 3 sin (1 - eˣ) + c