Precalculus Examples

$\sin (- \frac{5}{4})$

Step 1

Since $\sin (- \frac{5}{4})$ is an odd function, rewrite $\sin (- \frac{5}{4})$ as $- \sin (\frac{5}{4})$ .

$- \sin (\frac{5}{4})$

Step 2

The result can be shown in multiple forms.

Exact Form:

$- \sin (\frac{5}{4})$

Decimal Form:

$- 0.94898461 \dots$