If C is the line segment from (1, 4, 2) to (3, 2, 1), evaluate the line integral y+ 2) ds.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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4. (a) If C is the line segment from (1, 4, 2) to (3, 2, 1), evaluate the line
integral
r (y+ 2) ds.
(b) Given that
F(r, y, 2) = (y cos r + 2*) i+ (2y sin z- 4) j+ (3rz +2) k.
i. Show that F(r, y, z) is conservative, and find its potential
function.
ii. Find the work done by F(r, y, 2) in moving an object along
the line segment from (0, 1, -1) to (4, 7, 5) and to (.-1,2).
(G-1.2).
(c) Use Green's theorem to evaluate
f (v + ev) dz + (2r + cos (*)) dy
where C is the boundary of the region bounded by the curves
y = r* and y = r +2.
Transcribed Image Text:4. (a) If C is the line segment from (1, 4, 2) to (3, 2, 1), evaluate the line integral r (y+ 2) ds. (b) Given that F(r, y, 2) = (y cos r + 2*) i+ (2y sin z- 4) j+ (3rz +2) k. i. Show that F(r, y, z) is conservative, and find its potential function. ii. Find the work done by F(r, y, 2) in moving an object along the line segment from (0, 1, -1) to (4, 7, 5) and to (.-1,2). (G-1.2). (c) Use Green's theorem to evaluate f (v + ev) dz + (2r + cos (*)) dy where C is the boundary of the region bounded by the curves y = r* and y = r +2.
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