Perform the Indicated Operation A) $10.0000 + 17.3205 \mathrm { i }$

Multiple Choice

Perform the indicated operation. Give answers in rectangular form expressing real and imaginary parts to four decimal
places.
- $\left[ 5 \left( \cos 20 ^ { \circ } + i \sin 20 ^ { \circ } \right) \right] \left[ 4 \left( \cos 10 ^ { \circ } + i \sin 10 ^ { \circ } \right) \right]$

A) $10.0000 + 17.3205 \mathrm { i }$
B) $0.8660 + 0.5000 \mathrm { i }$
C) $0.5000 + 0.8660 \mathrm { i }$
D) $17.3205 + 10.0000 \mathrm { i }$