Consider the block matrixAm A12 A13A =0 0 A23where A\\ is an invertible matrix
Chapter 2, Problem 97(choose chapter or problem)
Consider the block matrixAm A12 A13A =0 0 A23where A\\ is an invertible matrix. Determine the rank of A in terms of the ranks of the blocks A11, A12, A13, and A 23.
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