Trigonometry Examples

$- \frac{7 π}{4}$

Step 1

Add $2 π$ to $- \frac{7 π}{4}$ .

$- \frac{7 π}{4} + 2 π$

Step 2

The resulting angle of $\frac{π}{4}$ is positive and coterminal with $- \frac{7 π}{4}$ .

$\frac{π}{4}$