Precalculus Examples

$\cos (- 270)$

Step 1

The result can be shown in multiple forms.

Exact Form:

$\cos (- 270)$

Decimal Form:

$- 1.83697019 \cdot 10^{- 16}$

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