Find sum of the pair of complex numbers.2 + 6i, -4
A. 4
B. 2 + 10i
C. -2 + 6i
D. 2 + 2i
Answer: C
Mathematics
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B. - 
C. - 
D. 
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B. 
C. 
D. 
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Find the vertex of the parabola.
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Please enter your answer as an ordered pair.
What will be an ideal response?
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Solve over the interval [0, 2?).f(x) = tan2 x - 3, f(x) < 0
A. 
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B. 
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C. 
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D. 
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Mathematics