Trigonometry Examples

$- \frac{3 π}{10}$

Step 1

Add $2 π$ to $- \frac{3 π}{10}$ .

$- \frac{3 π}{10} + 2 π$

Step 2

The resulting angle of $\frac{17 π}{10}$ is positive and coterminal with $- \frac{3 π}{10}$ .

$\frac{17 π}{10}$