Write the complex number in the form a + bi.4(cos -135° + i sin -135°)
A. - 
+ 
i
B. -2
- 2
i
C. - 
- 
i
D. -2
+ 2
i
Answer: B
Mathematics
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A. 10x2 - 70x + 60 B. -7x2 - 70x + 60 C. -7x2 - 70x - 70 D. 10x2 - 70x - 70
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Perform the indicated operation.3.12 - 1.242
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