Perform the indicated operation. Write the answer in the form a + bi.5(cos 120° + i sin 120°) ? 2(cos 90° + i sin 90°)
A. 10 - 10i
B. 5
- i
C. -5
+ 5i
D. 5
- 20i
Answer: C
Mathematics
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A. 
B. 
C. 
D. 
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A. 700,095 B. 795,000 C. 700,000.0095 D. 700,095.0001
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