Let A be a 6 n matrix of rank r and let b be a vector in R6. For each choice of r and n
Chapter 3, Problem 7(choose chapter or problem)
Let A be a 6 n matrix of rank r and let b be a vector in R6. For each choice of r and n that follows, indicate the possibilities as to the number of solutions one could have for the linear system Ax = b. Explain your answers. (a) n = 7, r = 5 (b) n = 7, r = 6 (c) n = 5, r = 5 (d) n = 5, r = 4
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