- #1
bigplanet401
- 104
- 0
Homework Statement
What is
[tex]
\int_0^{2 \pi} \; d\theta \sin^2 k\theta \cos^2 k\theta \; ?
[/tex]
Homework Equations
Orthogonality of sines and cosines?
The Attempt at a Solution
I tried substitution and didn't get anywhere. Yeah, that's about it.