Вопрос № 182

Date: 2015-10-07; view: 372.

Вопрос № 181

An additional determinant of the system

Solution of the system are:

x₁=1, x₂=-2.

x₁=-1, x₂=2.

x₁=-2, x₂=1.

x₁=-1, x₂=0.

x₁=1, x₂=0.

Вопрос № 183

Solution of the system are:

x₁=3, x₂=-1.

x₁=-1, x₂=3.

x₁=1, x₂=3.

x₁=-3, x₂=1.

x₁=-1, x₂=2.

Вопрос № 184

Solution of the system are:

x₁=2, x₂=-3.

x₁=-2, x₂=3.

x₁=-3, x₂=2.

x₁=-3, x₂=1.

x₁=3, x₂=0.

Вопрос № 185

Solution of the system are:

x₁=3, x₂=-5.

x₁=-5, x₂=2.

x₁=-5, x₂=-3.

x₁=5, x₂=-3.

x₁=-3, x₂=5.

Вопрос № 186

Solution of the system are:

No solution.

(-8;4;3).

(8;-4;3).

(-2;1;0).

(-2;-1;0).

Вопрос № 187

Solution of the system are:

(-1;1;0).

No solution.

(-8;4;3)

(8;-4;3).

(-2;-1;0).

Вопрос № 188

Solution of the system are:

(2;2;2).

(-2;2;1).

No solution.

(-2;1;0).

(-2;2;0).

Вопрос № 189

Solution of the system are:

(4;3;2;0).

No solution.

(-2;3;2;3).

(0;2;1;3).

(-2;2;0;1).

Вопрос № 190

A square matrix A n-th order is called degenerate if:

detA=0.

detA 0.

detA=1.

detA=-1.

detA=A^*/A^-1.

Вопрос № 191

The sum of matrices A + B, if , equal to:

Вопрос № 192

Disposition of straight Ах+Ву+С=0, if В=0, С 0:

parallel to axis ОХ;

axis ОХ;

parallel to axis ОУ;

axis ОУ;

passes through the origin coordinates.

Вопрос № 193

Angular coefficient of the straight 2,5у-5х+5=0:

2;

2,5;

-2;

-2,5;

5;