We'll consider linear transformations in R3 and R3 that transform familiar geometric shapes.Find an invertible linear transformation that maps the uni circle x2+y2=1 to the ellipse 1/4x2+1/9y2=1. By "maps the circle to the ellipse," we mean that every vector lying on the circle is sent to a vector lying on the ellipse. Is your answer unique? Justify rigorously.

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.3: Hyperbolas
Problem 45E
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We'll consider linear transformations in R3 and R3 that transform familiar geometric shapes.

Find an invertible linear transformation that maps the uni circle x2+y2=1 to the ellipse 1/4x2+1/9y2=1. By "maps the circle to the ellipse," we mean that every vector lying on the circle is sent to a vector lying on the ellipse. Is your answer unique? Justify rigorously.

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