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

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!

## Answers and Replies

tiny-tim
Homework Helper
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!

Hi fiziksfun!

Do you mean ∫5[(sinx)^(3/2)]cosx dx ?

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