Find the Trigonometric Form of the Complex Number Shown Below $$8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$$

Find the trigonometric form of the complex number shown below. ​
​-8

A) ​ $$8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)$$
B) ​ $8 \left( \cos \frac { \pi } { 4 } + i \sin \frac { \pi } { 4 } \right)$
C) ​ $8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)$
D) ​ $8 ( \cos 0 + i \sin 0 )$
E) $8 ( \cos \pi + i \sin \pi )$

Correct Answer:

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