For the given function, find the requested relative extrema or extreme value.y = 9xex; minimum value on [-2, 0]
A. 0
B. - 
C. - 81e9
D. 
Answer: B
Mathematics
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Determine whether the graph of the equation or function has symmetry about the x-axis, the y-axis, and the origin.f(x) = -3x3 + 2x
A. x-axis B. Origin C. x-axis, origin D. x-axis, y-axis
Mathematics
Set up the iterated integral for evaluating 
Dover the given region D.D is the right circular cylinder whose base is the circle 
in the xy-plane and whose top lies in the plane 
.
A. 
B. 
C. 
D. 
Mathematics
Simplify.i24
A. -i B. i C. 1 D. -1
Mathematics
Find all solutions of the equation in the interval [0, 2?).cos2 ? + 2 cos ? + 1 = 0
A. 2?
B. ?
C. 
, 
D. 
, 
Mathematics