€ {A R2×2 | det A = 1}. {A R2×2 | det A 0}. {A E R2×2 | AA = I}
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter6: The Trigonometric Functions
Section6.3: Trigonometric Functions Of Real Numbers
Problem 24E
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Which of the following subsets in the set R^2×2 is not a group under the usual matrix multiplication operation?
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