Simplify. Write your answer in the form a + bi, where a and b are real numbers.(-4 - 3i) - (5 - i)
A. -9 + 2i
B. 9 + 2i
C. -9 - 2i
D. -9 - 3i
Answer: C
Mathematics
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Find cos(A - B).cos A = - 
and sin B = 
, with A and B in quadrant II.
A. - 
B. 
C. 
D. - 
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Add and simplify.
+ 
A. 
B. 
C. 
D. 
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Perform the indicated operation and simplify.
- 
A. 
B. 
C. 
D. 
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Use mathematical induction to prove the statement is true for all positive integers n.4 ? 6 + 5 ? 7 + 6 ? 8 + ... + 4n(4n + 2) = 
What will be an ideal response?
Mathematics