Precalculus Examples

$- 131 °$

Step 1

The supplement of $- 131 °$ is the angle that when added to $- 131 °$ forms a straight angle ( $180 °$ ).

$180 ° - (- 131 °)$

Step 2

Multiply $- 1$ by $- 131$ .

$180 + 131 °$

Step 3

Add $180$ and $131$ .

$311 °$