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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 3(В-А)+2АВ-(А+2Е) with given matrix A and B:, А= , В= .
4. Given the vertices of a triangular A(-3;-2;5),B(3;0;6),C(5;-2-3). 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 =(3;4;-6), b =(4;11;0)
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