Trigonometry Examples

$\frac{- 2 π}{3}$

Step 1

Add $2 π$ to $\frac{- 2 π}{3}$ .

$\frac{- 2 π}{3} + 2 π$

Step 2

The resulting angle of $\frac{4 π}{3}$ is positive and coterminal with $\frac{- 2 π}{3}$ .

$\frac{4 π}{3}$