Trigonometry Examples

$\cos (20) \cdot \cos (40) \cdot \cos (80)$

Step 1

Multiply $\cos (20) \cos (40)$ by $\cos (80)$ .

$\cos (20) \cos (40) \cos (80)$

Step 2

The result can be shown in multiple forms.

Exact Form:

$\cos (20) \cos (40) \cos (80)$

Decimal Form:

$0.125$

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