## mpj4 one year ago Calculus: can you use tangent half angle substitution on something like sin^2(x)?

1. mpj4

or it can only be used on non squared trig functs?

2. ParthKohli

You definitely can, but it is not worth it. The proper way to integrate is to use the identity:$\sin^2 (x) = \dfrac{1 - \cos(2x)}{2}$

3. mpj4

Ah, that helps a lot. Thank you!

4. ParthKohli

No problem. :)