Trigonometry Examples

$\sec^{2} (\frac{x}{2}) = \frac{2}{1 + \cos (x)}$

Step 1

The provided equation is an identity.

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

$[\begin{array}{c} x^{2} & \frac{1}{2} \\ \sqrt{π} & \int x d x \end{array}]$