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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 with given matrix A and B: А -АВ+3А-2(ВА-E), А= , В= .
4. Given the vertices of a triangular A(1;-1;3),B(0;2;-3),C(3;1;2). Find the angle В and the projections of the following vectors on the coordinate axes .
5. Calculate the area of the parallelogram formed on the following vectors а =(2;3;4), b =(2;3;-4)
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