In order to find the area of an ellipse, we may make use of the idea of transformations and our knowledge (y – 1)? (x – 4)? of the area of a circle. For example, consider R, the region bounded by the ellipse 4 36 = 1. The easiest transformation to choose makes and v = which should be easily inverted to obtain and y = a(x, y) a(u, v) leading to a Jacobian of %3D a(x, y) - dudv where the transformed region S is bounded by a? + y² = 1, we And since calculate the area by multiplying the area and the Jacobian, arriving at Give an exact answer.

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
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In order to find the area of an ellipse, we may make use of the idea of transformations and our knowledge
(x – 4)° (y – 1)²
of the area of a circle. For example, consider R, the region bounded by the ellipse
4
36
= 1.
The easiest transformation to choose makes
and v =
which should be easily inverted to obtain
and y
a(x, y)
leading to a Jacobian of
a(u, v)
a(x, y)
-dudv where the transformed region S is bounded by x² + y? = 1, we
a(u, v)
And since
dA
calculate the area by multiplying the area and the Jacobian, arriving at
Give an exact answer.
Transcribed Image Text:In order to find the area of an ellipse, we may make use of the idea of transformations and our knowledge (x – 4)° (y – 1)² of the area of a circle. For example, consider R, the region bounded by the ellipse 4 36 = 1. The easiest transformation to choose makes and v = which should be easily inverted to obtain and y a(x, y) leading to a Jacobian of a(u, v) a(x, y) -dudv where the transformed region S is bounded by x² + y? = 1, we a(u, v) And since dA calculate the area by multiplying the area and the Jacobian, arriving at Give an exact answer.
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