Write the Complex Number in Trigonometric Form R(c $$r ( \cos \theta + i \sin \theta )$$

Write the complex number in trigonometric form r(c $$r ( \cos \theta + i \sin \theta )$$ ) , with $$\theta$$ in the interval [0 $$\left[ 0 ^ { \circ } , 360 ^ { \circ } \right)$$
-3

A) $3 \left( \cos 270 ^ { \circ } + i \sin 270 ^ { \circ } \right)$
B) $3 \left( \cos 0 ^ { \circ } + i \sin 0 ^ { \circ } \right)$
C) $3 \left( \cos 90 ^ { \circ } + i \sin 90 ^ { \circ } \right)$
D) $3 \left( \cos 180 ^ { \circ } + i \sin 180 ^ { \circ } \right)$

Correct Answer:

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