Find the sum of the arithmetic series.(-6) + (-1) + 4 + 9 + ... + 39
A. 160
B. 165
C. 330
D. 170
Answer: B
Mathematics
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B. 
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D. 
E. 
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Simplify the complex rational expression.
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B. 
C. 
D. 
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Find all real numbers in the interval [0, 2?) that satisfy the equation.sin2x - cos2x = 0
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B. 
C. 
D. 
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Plot the following complex number.
-3
A. 
B. 
C. 
D. 
E. 
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