1. The vector field F(x, y) = -24 yi i + -y x² + x² + y2 Is an example of a vector field that does not satisfy the conditions of the "fine print" in today's theorem. That is because the domain of this vector field has a hole at the point (0,0), but the theorem requires the domain to have no holes. a. Show that the vector field satisfies the condition b. Let r(t) = (cos(t),sin(t)), 0 < t < 2 n. Notice that the graph of r(t) is a closed curve C, since r(0) = r(2 7) = (1,0). Nevertheless, show that SF• dr is NOT zero.

Advanced Engineering Mathematics
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ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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1. The vector field
F(x, y) :
i +
x² + y2
Is an example of a vector field that does not satisfy the conditions of the "fine print" in today's
theorem. That is because the domain of this vector field has a hole at the point (0,0), but the
theorem requires the domain to have no holes.
ap aq
a. Show that the vector field satisfies the condition
ду дх
b. Let r(t) = (cos(t), sin(t)), 0 < t < 2 n. Notice that the graph of r(t) is a closed curve C,
since r(0) = r(2 T) = (1,0). Nevertheless, show that f. F• dr is NOT zero.
Transcribed Image Text:1. The vector field F(x, y) : i + x² + y2 Is an example of a vector field that does not satisfy the conditions of the "fine print" in today's theorem. That is because the domain of this vector field has a hole at the point (0,0), but the theorem requires the domain to have no holes. ap aq a. Show that the vector field satisfies the condition ду дх b. Let r(t) = (cos(t), sin(t)), 0 < t < 2 n. Notice that the graph of r(t) is a closed curve C, since r(0) = r(2 T) = (1,0). Nevertheless, show that f. F• dr is NOT zero.
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