Precalculus Examples

$\csc^{2} (t) - \sin^{2} (t) - \cot^{2} (t)$

Step 1

Move $- \cot^{2} (t)$ .

$\csc^{2} (t) - \cot^{2} (t) - \sin^{2} (t)$

Step 2

Apply pythagorean identity.

$1 - \sin^{2} (t)$

Step 3

Apply pythagorean identity.

$\cos^{2} (t)$

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