Trigonometry Examples

${(\cos (\frac{x}{2}) - \sin (\frac{x}{2}))}^{2} = 1 - \sin (x)$

Step 1

The provided equation is an identity.

${(\cos (\frac{x}{2}) - \sin (\frac{x}{2}))}^{2} = 1 - \sin (x)$ is an identity