Combine the complex numbers.3i + (-5 - i)
A. -5 + 4i
B. -5 + 2i
C. 5 - 2i
D. 5 - 4i
Answer: B
Mathematics
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A. 
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= 
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B. 
C. 
D. 
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What will be an ideal response?
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and cos ? = 
, find the value of tan ?.
A. 
B. 
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