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Let a be the 4 x 4 matrix (20.3) considered in this lecture and the previous one. (a) determine det a from (20.5). (b) determine det a from (21.3). (c) describe how gaussian elimination with partial pivoting can be used to find the determinant of a general square matrix.

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Let a be the 4 x 4 matrix (20.3) considered in this lecture and the previous one. (a) determine det...

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