Trigonometry Examples

$\cot (270)$

Step 1

Apply the reference angle by finding the angle with equivalent trig values in the first quadrant.

$\cot (90)$

Step 2

The exact value of $\cot (90)$ is $0$ .

$0$

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