### Home > INT3 > Chapter 9 > Lesson 9.2.2 > Problem9-111

9-111.

Evaluate each of the following expressions exactly.

Draw a unit circle and locate each angle. Draw a reference triangle. Use special triangles.

1. tan$( \frac { 2 \pi } { 3 } )$

$-\sqrt{3}$

1. tan$( \frac { 7 \pi } { 6 } )$

$\frac{\sqrt{3}}{3}$