# Math Help - Trig. Identities

1. ## Trig. Identities

Hello!

How do I solve the following equation...

$2\cos^2\Theta=2+\sin^2\Theta$

First time using latex.

2. Originally Posted by jonnygill
Hello!

How do I solve the following equation...

$2\cos^2\Theta=2+\sin^2\Theta$

First time using latex.
Wasn't paying attention with my help.

3. Originally Posted by jonnygill

How do I solve the following equation...

$2\cos^2\Theta=2+\sin^2\Theta$
By inspection $\displaystyle\Theta =0$ is a solution, or make $\displaystyle \cos^2\Theta = 1-\sin^2\Theta$ to solve it in terms of $\displaystyle\sin\Theta$