Trigonometry Examples

$\frac{π}{9}$

Step 1

Since $\frac{π}{9}$ is in the first quadrant, the reference angle is $\frac{π}{9}$ .

$\frac{π}{9}$

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