Вопрос № 133

Date: 2015-10-07; view: 451.

7,5.

Вопрос № 112

if (х₀, у₀)- the solution of system linear equalization ,

then х₀ - у₀ equal:

-7,5.

0,5.

-0,5.

0.

Вопрос № 113

Find which the identity matrix is:

Е= .

Е= .

Е= .

Е= .

Е= .

Вопрос № 114

Matrix size:

(3x3).

(4x3).

(3x4).

(3x2).

(2x3).

Вопрос № 115

Operations on matrices:

addition, multiplication by the number, the product.

addition, multiplication by the number.

multiplication by the number, the product.

the product.

addition.

Вопрос № 116

Determine the order of the determinant:

2-order.

1-order.

4-order

6-order

n-order.

Вопрос № 117

Square matrix:

Вопрос № 118

Calculate determine the 3rd order:

0.

2.

6.

5.

-1.

Вопрос № 119

Find the product matrix on the number of: 4

Вопрос № 120

Search matrix А*В: А= В=

0.

2.

-1.

1.

5.

Вопрос № 121

Search matrix *A если =5 А=

Вопрос № 122

Calculate determine the 3rd order:

0.

-2.

5.

-10.

10.

Вопрос № 123

Calculate determine the 3rd order:

0.

-12.

-10.

10.

-1.

Вопрос № 124

Calculate determine the 3rd order:

0.

64.

-64.

-1.

1.

Вопрос № 125

Search matrix А+В if А= В= ,

Вопрос № 126

Formula Cramer:

.

.

.

.

.

Вопрос № 127

Calculate determine the 2-th order:

1.

-1.

0.

2.

-2.

Вопрос № 128

Determine the order of the determinant:

n-order.

1-order.

2-order.

3-order.

4-order.

Вопрос № 129

To multiply matrix the number

Each element of the matrix multiplied by the number of

Each element of the first row of the matrix multiplied by the number of

Each element of the first column of the matrix multiplied by the number .

Each element of the second column of the matrix multiplied by the number of .

Each element of the column and row of the matrix multiplied by the number .

Вопрос № 130

Calculate the determinant of the matrix

-1

-50

Вопрос № 131

Dimension of matrices:

mxn.

mxm.

nxn.

nx1.

m=1.

Вопрос № 132

The order of the determinant, consisting of n-elements:

3-порядка.

n –порядка.

4-порядка.

6-порядка.

5-порядка.

An additional determinant of the system:

Вопрос № 134

If you multiply this matrix by a unit matrix, we obtain:

this matrix.

identity matrix.

zero matrix.

square matrix.

inverse matrix.

Вопрос № 135

Formula for calculating the determinant of second order:

.

.

.

.

.

Вопрос № 136

If the items are below the main diagonal are zero, then the square matrix is called:

triangular.

diagonal.

unit and square.

square.

unit.

Вопрос № 137

An additional determinant of the system:

Вопрос № 138

Methods for solving systems of linear equations:

Kramer, Gauss-Jordan.

Sarryusa and Kronecker - Capelli.

Cauchy problem.

Sarryusa.

Kronecker - Capelli.

Вопрос № 139

B as a matrix of four laboratory feeding birds in two different types of food:

Вопрос № 140

Short name of the matrix:

.

.

.

.

.

Вопрос № 141

Elements of the matrix form:

columns and rows.

lines and diagonals.

diagonal.

columns.

line.

Вопрос № 142

Matrix called:

vector - a string.

vector - column.

vector - a line and vector - the column.

the diagonal.

vector.

Вопрос № 143

Matrix called:

vector - column.

vector - a string.

vector - a line and vector - the column.

the diagonal.

vector.

Вопрос № 144

Key containing two identical columns:

is zero.

is 1.

is equal to -1.

is 12.

is 15.

Вопрос № 145

Additional determinant of the system:

Вопрос № 146

Key to containing two proportional columns:

is zero.

equal to -2.

is 1.

equal to -5.

is 5.

Вопрос № 147

If one of the rows of the determinant consists of zeros, the determinant:

is zero.

is -1.

is 1.

is 5.

is equal to -6.

Вопрос № 148

Determination of the identity matrix:

diagonal elements are composed of units of the remaining zeros.

elements of the first line consists of all ones.

elementy first column consist of all ones.

all elements are equal to unity.

matrix consisting of one row or one column.

Вопрос № 149

What condition is required to add two matrices:

the same dimension matrices.

the various dimensions of matrices.

the number of rows of the first matrix equals the number of columns of the second matrix.

the number of columns of the first matrix equals the number of rows of the second matrix.

diagonal elements are the same.

Вопрос № 150

What condition must be fulfilled for the multiplication of two matrices:

number of columns of the first matrix equals the number of rows of the second matrix.

the same diagonal elements.

the same dimensions.

the number of columns are equal.

the number of rows are equal.

Вопрос № 151

In which case the system of equations is called homogeneous:

all the free terms are equal to zero.

free terms different numbers.

at least one of the free terms equal to zero.

at least one of the free terms equal to unity.

all free members are equal to unity.

Вопрос № 152

Find a matrix A*B if

Вопрос № 153

Find a matrix A*B if

Вопрос № 154

Solve the system of equations:

(2;-5).

(1;6).

(8;1).

(-5;2).

(1;0).

Вопрос № 155

Calculate to determine the 2-nd order:

(a+b)(c+k)-(b+k)(a+c).

(a+k)(c-b).

ck+ab.

ab.

ac.

Вопрос № 156

Calculate to determine the 2-nd order:

0.

-18.

2.

4.

5.

Вопрос № 157

Calculate the determinant of the matrix:

44.

18.

0.

52.

16.

Вопрос № 158

Calculate the determinant of the matrix:

50.

16.

-50.

70.

0.

Вопрос № 159

Calculate the determinant of the matrix:

-1.

0.

50.

16.

-50.

Вопрос № 160

Find a matrix * A if =3

Вопрос № 161

Calculate determine the 3rd order:

40.

1.

65.

0.

-40.

Вопрос № 162

Calculate determine the 3rd order:

-5.

5.

1.

0.

10.