Trigonometry Examples

$\cot (720)$

Step 1

Rewrite $\cot (720)$ in terms of sines and cosines.

$\frac{\cos (720)}{\sin (720)}$

Step 2

Remove full rotations of $360$ ° until the angle is between $0$ ° and $360$ °.

$\frac{\cos (720)}{\sin (0)}$

Step 3

The exact value of $\sin (0)$ is $0$ .

$\frac{\cos (720)}{0}$

Step 4

The expression contains a division by $0$ . The expression is undefined.

Undefined