11. A linear transformation T: R2 → R² first reflects points through the ₁-axis and then reflects points through the 22-axis. Show that I can also be described as a linear transformation that rotates points about the origin. What is the angle of that rotation?

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter6: Linear Transformations
Section6.1: Introduction To Linear Transformations
Problem 76E: A translation in R2 is a function of the form T(x,y)=(xh,yk), where at least one of the constants h...
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11. A linear transformation T: R² → R2 first reflects points through the
₁-axis and then reflects points through the 2-axis. Show that I can
also be described as a linear transformation that rotates points about the
origin. What is the angle of that rotation?
Transcribed Image Text:11. A linear transformation T: R² → R2 first reflects points through the ₁-axis and then reflects points through the 2-axis. Show that I can also be described as a linear transformation that rotates points about the origin. What is the angle of that rotation?
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