## Trigonometry (10th Edition)

$sin$(-60) = $\frac{-\sqrt3}{2}$ $cos$(-60) = $\frac{1}{2}$ $tan$(-60) = $\frac{-\sqrt3}{1}$ $cot$(-60) = $\frac{-\sqrt3}{3}$ $sec$(-60) = $\frac{2}{1}$ = 2 $csc$(-60) = $\frac{-2\sqrt3}{3}$
300$^{\circ}$ We can solve for the functions by using the coterminal angle. We can find the coterminal angle by adding or subtracting 360$^{\circ}$ as many times as needed. 300$^{\circ}$ - 360$^{\circ}$ = -60$^{\circ}$ $sin$(-60) = $\frac{-\sqrt3}{2}$ $cos$(-60) = $\frac{1}{2}$ $tan$(-60) = $\frac{-\sqrt3}{1}$ $cot$(-60) = $\frac{-1}{\sqrt3}$ = $\frac{-\sqrt3}{3}$ $sec$(-60) = $\frac{2}{1}$ = 2 $csc$(-60) = $\frac{-2}{\sqrt3}$ = $\frac{-2\sqrt3}{3}$