Question

Evaluate (integral) e^3x dx.

A. e^3x + C
B. 1/3e^3x + C
C. e^4x + C
D. 1/4e^4x + C

Answer 1

let u = 3x

so, du = 3dx, or dx = du/3

integral e^3x dx = integral e^u du/3

you can surely take it from there. . .