Вопрос № 174

Date: 2015-10-07; view: 356.

Calculate the determinant :

2.

-2.

3.

1.

-1.

Вопрос № 175

Calculate the determinant :

6.

-2.

3.

1.

-1.

Вопрос № 176

In which case the determinant does not change

if interchange rows and columns with the same number

if you rearrange the columns

if you multiply the determinant to zero

if you rearrange the rows and columns with different numbers

if you multiply the determinant by one

Вопрос № 177

An additional determinant of :

is obtained by substituting the second column of free terms.

obtained by substituting the first column of free terms.

obtained by substituting the third column of free terms.

obtained by multiplying the determinant to zero.

obtained by multiplying the determinant of one.

Вопрос № 178

What is the number of rows of the matrix?

m=1.

n=0.

m=0.

m=n.

n=1.

Вопрос № 179

If the determinant of the system is different from zero, then the solution of the system:

is unique.

x=0 y=0.

no solutions

y=0.5

non solution

Вопрос № 180

Elements the main diagonal:

А₁₁А₂₂А₃₃

А₃₃А₂₃ А₁₁

А₃₂А₂₃ А₂₁

А₂₁А₃₂А₃₃

А₃₂А₂₃ А_{11 .}