Linear algebra, the answers to the test OYUI

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Linear algebra, the answers to the test OYUI Linear algebra, the answers to the test OYUI

Responses to test the Open Institute of Law are in a file word.

Answer format: question -> answer options -> marked by the correct answer.

Answers to tests OYUI latest, guarantee 100% of the results of the test to assess the 5.

The questions in the test:

1. What objects studying linear algebra?

??Sistemy equations




2. Dana matrix A is the number of rows and m number of columns n. To determine the dimension of the matrix, it is necessary

??razmernost matrix [mxn]

??dannyh insufficient to determine the dimension of the matrix

??umnozhit number of lines per number of columns mxn

??slozhit number of rows and number of columns m + n

3. The matrix is \u200b\u200bcalled a square if

??vse its elements are the same

??odinakovy elements at the corners of the matrix

??matritsa has 3 rows and 3 columns

??kolichestvo rows of the matrix equals the number of columns


11. Multiplying the matrices [2 x 2] and [2 x 2] matrix C = AB and D = BA matrix will be

??matritsy will have different dimensions, so it is impossible to perform a comparison

??ravny together

??mogut be both equal and not equal

??ne equal

12. What is the name of the matrix, for which the assertion AB = BA?




??Ne exist matrices for which such a statement is true

13. The identity matrix is \u200b\u200ba matrix in which the

??elementy on the main diagonal are 1, other elements - zero

??vse elements are equal to 1

??elementy the main diagonal are equal to 0, the remaining elements - 1

??elementy on the main diagonal are 1, other elements - arbitrary

14. The identity matrix can be determined only

??pryamougolnoy matrix

??matritsy any dimension

??treugolnoy matrix

??kvadratnoy matrix

15. The identity matrix is \u200b\u200balways denoted





16. What is the property of an identity matrix is \u200b\u200bfair (A - arbitrary matrix)?

??AE = 0

??AE = 1

??AE EA =

??A + E = E + A

17. What is the matrix called a scalar?

??Matritsa which consists only of a single number

??Matritsa, whose main diagonal elements all equal

??Matritsa, whose main diagonal elements equal 1

??Matritsa, all of whose elements are equal


Additional information

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