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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 following expression В -2АВ+3(А-В-Е) with given matrix A and B: А= , В= .
4. Given the vertices of a triangular A(2;4;5),B(-3;2;2),C(-1;0;3). 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 =(1;-4;-2), b =(3;-5;-6)
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