# Can I do this in this math problem/substitution Calc 2

1. Oct 4, 2015

### Steebly

1. The problem statement, all variables and given/known data
Find integral of 4*e^(4x)*sin(e^(4x))dx

2. Relevant equations

3. The attempt at a solution
Can I do this in this math problem
I took the integral of 4e^(4x)*sin(e^(4x)) dx using substitution method. in the end I got e^(4x)*-cos*[1/e^(4x)] do the ex^4x just cancel out?

2. Oct 4, 2015

### SteamKing

Staff Emeritus
Yes.