Perform the Indicated Operation $\left( 12 \operatorname { cis } 18.5 ^ { \circ } \right) \left( 5 \operatorname { cis } 6.5 ^ { \circ } \right)$

Perform the indicated operation. Give answers in rectangular form expressing real and imaginary parts to four decimal
places.
- $\left( 12 \operatorname { cis } 18.5 ^ { \circ } \right) \left( 5 \operatorname { cis } 6.5 ^ { \circ } \right)$

A) $54.3785 + 25.3571 \mathrm { i }$
B) $11.8944 - 1.5882 \mathrm { i }$
C) $- 0.6618 + 4.9560 \mathrm { i }$
D) $- 7.9411 + 54.3785 \mathrm { i }$

Correct Answer:

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