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2 1 -1 1 -2 3 2 1 -1 -2 1 3 2 -1 1 2 2 If A = show that -2 1 (A +B)² A² + AB + BA + B² %3D

2 1 -1 1 -2 3 2 1 -1 -2 1 3 2 -1 1 2 2 If A = show that -2 1 (A +B)² A² + AB + BA + B² %3D

Elementary Geometry For College Students, 7e
Elementary Geometry For College Students, 7e
7th Edition
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Alexander, Daniel C.; Koeberlein, Geralyn M.
ChapterP: Preliminary Concepts
SectionP.CT: Test
Problem 1CT
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2 1 -1 1 -2 -2 1 2 1 -1 2 B = -2 1 2 -1 1/ 2. If A = 3 3 show that (A +B)² = A² + AB + BA + B² %3D
Transcribed Image Text:2 1 -1 1 -2 -2 1 2 1 -1 2 B = -2 1 2 -1 1/ 2. If A = 3 3 show that (A +B)² = A² + AB + BA + B² %3D
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