Variant 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 expression АВ-3В+5ВА with given matrix A and B: А = , В = .

4.Given the vertices of a triangular А(2;5;4), В(0;7;2), С(1;5;2). Find the angle В and projections of the following vectors on the coordinate axes .

5.Calculate the area of the parallelogram formed on the vectors а =(2;5;7), b =(5;5;6).

Дата добавления: 2015-07-11