Chapter 2 - Acute Angles and Right Triangles - Section 2.2 Trigonometric Functions of Non-Acute Angles - 2.2 Exercises - Page 59: 14

$\sin$ 120^{\circ} = $\frac{\sqrt3}{2}$ $\cot$ 120^{\circ} = -$\frac{\sqrt3}{3}$ $\csc$ 120^{\circ} = $\frac{2\sqrt3}{3}$

120${\circ}$ $\sin$ 120^{\circ} = $\frac{Opposite}{Hypotenuse}$ = $\frac{\sqrt3}{2}$ $\cot$ 120^{\circ} = $\frac{Adjacent}{Opposite}$ = $\frac{-1}{\sqrt3}$ = -$\frac{\sqrt3}{3}$ $\csc$ 120^{\circ} = $\frac{Hypotenuse}{Opposite}$ = $\frac{2}{\sqrt3}$ = $\frac{2\sqrt3}{3}$