Algebra Examples

$\cos^{2} (\frac{π}{2})$

Step 1

The exact value of $\cos (\frac{π}{2})$ is $0$ .

$0^{2}$

Step 2

Raising $0$ to any positive power yields $0$ .

$0$

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