The control computer 30 Mathematics workshop setting.

Answers to 30 job, in the form of a table.

A separate file contains all tasks.

Tasks for comparison:


1. Calculate the determinant of the expansion of the elements of the third column:

2. Calculate the determinant of the expansion in the first row:

3. Calculate the determinant of the expansion of the elements of the first column:

4. Calculate the determinant elements of expansion in the fourth row:

5. Calculate the determinant of the expansion of the elements of the third row:

6. Find the matrix product A • In manual and check the result in the package MS Excel:

7. Find the product of matrices A • In manual and check the result in the package MS Excel:

8. Find the matrix product in MS Excel.

9. Find the matrix product in MS Excel.

10. Find the matrix product in MS Excel.

11. Find the rank of.

12. Find the rank of.

13. Find the rank of.

14. Find the inverse of matrix A by fractional format (simple fractions):


...


27. Solve the system of linear equations by Cramer's rule:

28. Solve the system of linear equations by Cramer's rule:

30. Find the matrix ...

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