Simplify. Express in terms of i.
A. -2
B. 2i
C. 2
D. -2i
Answer: B
Mathematics
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Find the slope of the polar curve at the indicated point.r = 9 sin 4?, ? = 0
A. 1 + 
B. -1
C. 0
D. 
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Determine if the given polar coordinates represent the same point.(8, ?/6), (-8, 7?/6)
A. No B. Yes
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Determine whether the test point is a solution to the linear inequality.(3, -5), y < x
A. Yes B. No
Mathematics
Find the numbers at which f is continuous. At which numbers is f discontinuous?f(x) = 
A. continuous for all real numbers
B. continuous for all real numbers except x = 2
C. continuous for all real numbers except x = -2, x = 2 and x = 
D. continuous for all real numbers except x = -2 and x = 2
Mathematics