Trigonometry Examples

$\tan (- \frac{\sqrt{21}}{5} + \frac{\sqrt{2}}{2})$

Step 1

The result can be shown in multiple forms.

Exact Form:

$\tan (- \frac{\sqrt{21}}{5} + \frac{\sqrt{2}}{2})$

Decimal Form:

$- 0.21252400 \dots$