Solution Found!
How many pivot columns must a 5 × 7 matrix have if its
Chapter 1, Problem 28E(choose chapter or problem)
QUESTION:
PROBLEM 28E
How many pivot columns must a 5 × 7 matrix have if its columns span ℝ5? Why?
Questions & Answers
QUESTION:
PROBLEM 28E
How many pivot columns must a 5 × 7 matrix have if its columns span ℝ5? Why?
ANSWER:
Solution : There must be 5 pivot columns, which can be justified as follows. Let the matrix in