Trigonometry Examples

$r = 4 \cos (40)$

Step 1

Using the formula $r = a \cos (θ)$ or $r = a \sin (θ)$ , graph the circle.

$r = 4 \cos (40)$

Step 2

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