Sketch D and g(D) from the description of D and change of variables 
x = u cos v, y = u sin v where D is the rectangle 1 ? u ? 2, 0 ? v ? 
?
A.
 ? |  |
B.
 ? |  |
C. None of these.
D.
 ? |  |
Answer: D
Mathematics
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Simplify the expression.
A. 
B. 
C. 
D. 
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Use the Quotient Rule to find the derivative of the function.
Mathematics
Graph the ellipse and locate the foci.9x2 + 16y2 = 144
A. foci at (0, 
) and (0, -
)
B. foci at (4, 0) and (-4, 0)
C. foci at (5, 0) and (-5, 0)
D. foci at (
, 0) and (-
, 0)
Mathematics
Find the first 4 terms of the recursively defined sequence.a1 = 5, an + 1 = 
A. 5, - 
, 
, - 
B. 5, - 
, -5, 
C. 5, - 
, 5, - 
D. -5, 
, - 
, 
Mathematics