Option 1 IDZ 1.1
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DHS - 1.1
No. 1.1. 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 = 4; j = 1.
No. 2.1. Two matrices A and B are given. Find: a) AB; b) BA; c) A – 1; d) AA – 1; e) A – 1A.
Number 3.
No. 4
No. 1.1. 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 = 4; j = 1.
No. 2.1. Two matrices A and B are given. Find: a) AB; b) BA; c) A – 1; d) AA – 1; e) A – 1A.
Number 3.
No. 4
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