Let A € RPXm have rank r. Show that there are matrices C and B such that A = св, where C E RPXT and B E R*m are both full rank (r). Hint. Form C from r linearly independent columns of A.

Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter3: Matrices
Section3.5: Subspaces, Basis, Dimension, And Rank
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Let A € RPXm have rank r. Show that there are matrices C and B such that A =
св,
where C E RPXT and B E R*m are both full rank (r).
Hint. Form C from r linearly independent columns of A.
Transcribed Image Text:Let A € RPXm have rank r. Show that there are matrices C and B such that A = св, where C E RPXT and B E R*m are both full rank (r). Hint. Form C from r linearly independent columns of A.
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