Option 23 DHS 1.1

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Description Option 23 DHS 1.1

DHS - 1.1
No. 1.23. 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 out
j column elements; c) having previously received zeros in the i line. i = 4; j = 4.
No. 2.23. Two matrices A and B are given. Find: a) AB; b) BA; c) A – 1; d) AA – 1; e) A – 1A.

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