Perform the Indicated Operation Using Trigonometric Form $( - 6 - 6 i ) ( - 5 - 5 i )$

Multiple Choice

Perform the indicated operation using trigonometric form.Leave answer in trigonometric form. $( - 6 - 6 i ) ( - 5 - 5 i )$

A) $30 \left( \cos \frac { \pi } { 8 } + i \sin \frac { \pi } { 8 } \right)$
B) $- 60 \left( \cos \frac { \pi } { 8 } + i \sin \frac { \pi } { 8 } \right)$
C) $30 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)$
D) $60 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)$
E) $- 30 \left( \cos \frac { \pi } { 8 } + i \sin \frac { \pi } { 8 } \right)$