e fact that matrices A and 8 are row-equivalent. 8 0 -17 -5 1 5 -2 -5 1 3 -7 -15 23 5 -77 7 -13 5 10 1 0 1 -2 0 0 0 0 1 - 0 0 1 -3 10 3 (a) Find the rank and nullity of A. rank

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