11.7 Let HG and K◄ G, and assume that HNK={e}. Show that if x € Hand y EK then xy =yx.
11.7 Let HG and K◄ G, and assume that HNK={e}. Show that if x € Hand y EK then xy =yx.
Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter5: Inverse, Exponential, And Logarithmic Functions
Section5.4: Logarithmic Functions
Problem 38E
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I don't understand how y*x^-1*y^-1 element of H becomes x*y*x^-1*y^-1. Please explain. Thank you
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