# Trigonometric Integrals

Hi,

I have an exam on trig integrals tomorrow and need to freshen up on some basic trig rules (i.e. d/dx of sin(mx) and trig identities such as sin^2(x)+cos^2(x)=1)

I was curious if anyone new of some good websites that reviewed all common trig identities used in calculus. Any help is much appreciated.

Thank You