Let T be the linear transformation T: R² R² that takes a Point (X,Y) E R² and reflects it across the x-axis, then rotates it counter Clockwise about the origin through an angle of 21 i. Let A be the standard matrix for T. Compute det (A²). ii. Is T one-to-one? Is T onto? Explain.

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Linear Transformations
Section6.CR: Review Exercises
Problem 29CR: Use the standard matrix for counterclockwise rotation in R2 to rotate the triangle with vertices...
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Let T be the linear transformation T: R² R² that takes a
Point (x,y) ER² and reflects it across the x-axis, then rotates
it counter Clockwise about the origin through an angle
of 21 1².
24
i. Let A be the standard matrix for T. Compute det (A²).
ii Is T one-to-one? Is Tonto? Explain.
Transcribed Image Text:Let T be the linear transformation T: R² R² that takes a Point (x,y) ER² and reflects it across the x-axis, then rotates it counter Clockwise about the origin through an angle of 21 1². 24 i. Let A be the standard matrix for T. Compute det (A²). ii Is T one-to-one? Is Tonto? Explain.
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