Mon. Nov 9, 2015
MATH 250,
Quiz 8
J'��&IH.J,·
Name (print):
Each problem is worth 2 points. Show all your work.
✓
1. Let V be the volume of the solid that lies under the graph of f (x, y) = 52 - x 2 - y2
and above the rectangle R = (2, 4) x (2, 6). We use the lines x = 3 and y = 4 to divide R
into subrectangles. Let L and U be the Riema�n sums computed using lower left corners
and upper right corners, respectively. Without calculating the numbers V, L and U,
arrange them in increasing order and explain your reasoning.
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2. The integral JJR
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y2
w-?.e�
L°> 2 J X [e, l/]
dA represents the volume of a solid. Sketch the solid.
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is)
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