Perform the Operation Shown Below and Leave the Result in Trigonometric

Multiple Choice

Perform the operation shown below and leave the result in trigonometric form. $\left[ 3 \left( \cos 100 ^ { \circ } + i \sin 100 ^ { \circ } \right) \right] \left[ 6 \left( \cos 230 ^ { \circ } + i \sin 230 ^ { \circ } \right) \right]$

A) $18 \left( \cos 230 ^ { \circ } + i \sin 230 ^ { \circ } \right)$
B) $18 \left( \cos 130 ^ { \circ } + i \sin 130 ^ { \circ } \right)$
C) $18 \left( \cos 330 ^ { \circ } + i \sin 330 ^ { \circ } \right)$
D) $9 \left( \cos 330 ^ { \circ } + \sin 330 ^ { \circ } \right)$
E) $9 \left( \cos 130 ^ { \circ } + i \sin 130 ^ { \circ } \right)$