Let A be an m X n matrix ofrank r. Let The the linear mapping defined by A. Determine
Chapter 4, Problem 23(choose chapter or problem)
Let A be an m X n matrix ofrank r. Let The the linear mapping defined by A. Determine the dimensions of the following subspaces. Hint for (d) and (e), see Exercise 10, Section 4. 7. (a) col(A) (b) row(A) (c) null(A) (d) (col(A)) J_ (e) (row(A)) J_
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