Solved: Show that if A is a matrix all of whose columns add up to l. then A = 1 is an
Chapter 7, Problem 33(choose chapter or problem)
Show that if A is a matrix all of whose columns add up to l. then A = 1 is an eigenvalue of A. (Hilll: Consider the product AT x. where x is a vector all of whose entries are I. and use Exercise 12.)
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