Let A = [ ã1 ...ān ] be an k x n-matrix. Here ā1,...,ān e R* are the column-vectors. Let E be an nvertible k × k-matrix, and EA = B, with B=[b.….n ]. Assume the vectors bi, ,...b, give a basis of the column space Col(B). Prove that the vectors ā¡ ,...ā, give a basis of the column space Col(A).

Elementary Linear Algebra (MindTap Course List)
8th Edition
ISBN:9781305658004
Author:Ron Larson
Publisher:Ron Larson
Chapter4: Vector Spaces
Section4.5: Basis And Dimension
Problem 69E: Find a basis for R2 that includes the vector (2,2).
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Let A = [ ã1 ...ān ] be an k x n-matrix. Here ā1,...,ān e R* are the column-vectors. Let E be an
nvertible k × k-matrix, and
EA = B, with B=[b.….n ].
Assume the vectors bi, ,...b, give a basis of the column space Col(B). Prove that the vectors ā¡ ,...ā,
give a basis of the column space Col(A).
Transcribed Image Text:Let A = [ ã1 ...ān ] be an k x n-matrix. Here ā1,...,ān e R* are the column-vectors. Let E be an nvertible k × k-matrix, and EA = B, with B=[b.….n ]. Assume the vectors bi, ,...b, give a basis of the column space Col(B). Prove that the vectors ā¡ ,...ā, give a basis of the column space Col(A).
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