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Variant 24



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1. Calculate the determinants

а) b) c)

2. Solve the given system of linear equations using a) Cramer’s Rule; b) matrix method; c) Gauss’ method. Compare the results:

3. Calculate the value of the expression А -13(А+В)-ВА with given matrix A and B: А= , В= .

4. Given the vertices of a triangular A(2;-1;2),B(3;-2;2),C(2;2;-5). Find the projections of the following vectors on the coordinate axes and the angle В.

5. Calculate the area of the parallelogram formed on the following vectors

а =(2;4;-4), b =(4;-3;2)



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