Let F(x, y, z) = (xz, yz, z²). (a) Let S be the cylinder a2 + y² = 4, 1 < z < 3, oriented by the outward normal. Find SS;F · dS.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
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Chapter2: Second-order Linear Odes
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it is a multivariable calculus problem.

Let F(x, y, 2) = (xz, yz, z²).
(a) Let S be the cylinder x? + y? = 4, 1 < z < 3, oriented by the outward normal. Find
ST; F. ds.
(b) Suppose that you "close up" the cylinder S in part (a) by adding the disks x? + y² < 4,
z = 3, and x2 + y? < 4, z = 1, at the top and bottom, respectively, where the disk at
the top is oriented by the upward normal and the one at the bottom is oriented by the
downward normal. Let S1 be the resulting surface: cylinder, top, and bottom. Find
Sls, F · dS.
Transcribed Image Text:Let F(x, y, 2) = (xz, yz, z²). (a) Let S be the cylinder x? + y? = 4, 1 < z < 3, oriented by the outward normal. Find ST; F. ds. (b) Suppose that you "close up" the cylinder S in part (a) by adding the disks x? + y² < 4, z = 3, and x2 + y? < 4, z = 1, at the top and bottom, respectively, where the disk at the top is oriented by the upward normal and the one at the bottom is oriented by the downward normal. Let S1 be the resulting surface: cylinder, top, and bottom. Find Sls, F · dS.
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