Trigonometry Examples

$\sin (2 \arctan (\frac{2}{7}))$

Step 1

Evaluate $\arctan (\frac{2}{7})$ .

$\sin (2 \cdot 0.27829965)$

Step 2

Multiply $2$ by $0.27829965$ .

$\sin (0.55659931)$

Step 3

The result can be shown in multiple forms.

Exact Form:

$\sin (2 \arctan (\frac{2}{7}))$

Decimal Form:

$0.52830188 \dots$

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