Trigonometry Examples

$1 - 2 \sec (x) + \sec^{2} (x) - \tan^{2} (x)$

Step 1

Move $- \tan^{2} (x)$ .

$1 - 2 \sec (x) + \sec^{2} (x) - \tan^{2} (x)$

Step 2

Apply pythagorean identity.

$1 - 2 \sec (x) + 1$

Step 3

Add $1$ and $1$ .

$2 - 2 \sec (x)$

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