Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN: 9781133382119
Author: Swokowski
Publisher: Cengage
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
Transcribed Image Text:Problem 20. In this question, we'll consider linear transformations in R2 and R3 that transform familiar
geometric shapes.
12
(a) Find an invertible linear transformation that maps the unit circle x² + y² = 1 to the ellipse 1½ x² + 1½³ y² = 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!
(b) Find a linear transformation that maps the unit sphere x² + y²+z² = 1 to the ellipsoid x²+ y²+ z2
16
= 1.
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