The first question below appeared as Exercise 30. (a) Show that the rank of the product of
Question:
(a) Show that the rank of the product of two matrices is less than or equal to the minimum of the rank of each.
(b) Show that if T and S are square then TS = I if and only if ST = I.
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a Assume that B is row equivalent to A and that A is invertible Because they are row...View the full answer
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