Precalculus Examples

$r = \frac{1}{\cos (θ) + 5 \sin (θ)}$

Step 1

The radius of a circle can not be less than $0$ .

Not a valid circle

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