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1. 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 2Е+ВА-4В with given matrix A and B: А = , В = .
4. Given the vertices of a triangular А(7;2;2),В(2;8;4),С(3;4;-2). 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 =(6;3;-2) b =(3;-2;6)
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