# Integral of 5sin^(3/2)x*cosx dx

1. Mar 31, 2008

### fiziksfun

I'm having trouble with this integral:

integral of 5sin^(3/2)x*cosx dx

any suggestions? i tried integration by substitution but it didnt work.
do i need to do integration by part?? help!

2. Mar 31, 2008

### tiny-tim

Hi fiziksfun!

Do you mean ∫5[(sinx)^(3/2)]cosx dx ?

Because, if you did the obvious substitution, it should have worked