Precalculus Examples

$\arctan (\arccos (\arcsin (\sin (\cos (\tan (9))))))$

Step 1

Evaluate $\tan (9)$ .

$\arctan (\arccos (\arcsin (\sin (\cos (0.15838444)))))$

Step 2

The result can be shown in multiple forms.

Exact Form:

$\arctan (\arccos (\arcsin (\sin (\cos (0.15838444)))))$

Decimal Form:

$0.15707963 \dots$