Option 5 DHS 1.1
π Mathematics
π€ Chelovek10000
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DHS - 1.1
β 1.5. For this determinant find the minors and algebraic additions.
Calculate the determinant: a) spreading it over the elements of the i line; b) spreading it into j column elements; c) having previously received zeros in the i line. i = 2; j = 4.
Number 2.5. Two matrices A and B are given. Find: a) AB; b) BA; c) A β 1; d) AA β 1; e) A β 1A.
β 1.5. For this determinant find the minors and algebraic additions.
Calculate the determinant: a) spreading it over the elements of the i line; b) spreading it into j column elements; c) having previously received zeros in the i line. i = 2; j = 4.
Number 2.5. Two matrices A and B are given. Find: a) AB; b) BA; c) A β 1; d) AA β 1; e) A β 1A.
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