Option 28 DHS 1.1
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DHS - 1.1
No. 1.28. For this determinant find the minors and algebraic additions.
Calculate the determinant: a) spreading it over the elements i of the string; b) spreading it into j column elements; c) having previously received zeros in the i line. i = 1; j = 2.
No. 2.28. Two matrices A and B are given. Find: a) AB; b) BA; c) А⁻¹; d) AA⁻¹; e) А⁻¹А
No. 1.28. For this determinant find the minors and algebraic additions.
Calculate the determinant: a) spreading it over the elements i of the string; b) spreading it into j column elements; c) having previously received zeros in the i line. i = 1; j = 2.
No. 2.28. Two matrices A and B are given. Find: a) AB; b) BA; c) А⁻¹; d) AA⁻¹; e) А⁻¹А
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