1. ## Trigonometric Integral

I'm not exactly sure which method I should use to compute $\int \sin^2 \theta \cos^4 \theta \, d\theta$

2. ## Re: Trigonometric Integral

Hint.

$sin^2(\theta) = \frac{1}{2}\left ( 1 -cos(2\theta) \right )$

$cos^2(\theta) = \frac{1}{2}\left ( 1 +cos(2\theta) \right )$