\prob Convert from radians to degrees. For parts (a) - (c), give exact answers. For part (d), approximate using your calculator, and round your answer to four decimal places:
(a) $\frac{11\pi}{6}$= $^{\circ}$
(b) $\frac{7\pi}{4}$ = $^{\circ}$
(c) $\frac{-5\pi}{3}$ = $^{\circ}$
(d) $1$ radians = $^{\circ}$

Hint: