Trigonometry Examples

$2 \cos^{2} (15 - 1)$

Step 1

Subtract $1$ from $15$ .

$2 \cos^{2} (14)$

Step 2

The result can be shown in multiple forms.

Exact Form:

$2 \cos^{2} (14)$

Decimal Form:

$1.88294759 \dots$

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