Let U be a subspace of the vector space V , let y E V and define the set y +U = {v € V[v = y +u for some u E U}. Show that y + U is a subspace of V if and only if y E U.

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter5: Inner Product Spaces
Section5.CM: Cumulative Review
Problem 24CM
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II. 3

Let U be a subspace of the vector space V , let y E V and define the set
y +U = {v€ V|v = y+u for some u E U}.
Show that y +U is a subspace of V if and only if y E U.
Transcribed Image Text:Let U be a subspace of the vector space V , let y E V and define the set y +U = {v€ V|v = y+u for some u E U}. Show that y +U is a subspace of V if and only if y E U.
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