Math module 1

Provide the definition of a matrix

• Number

• Function

• Table of elements

• Vector

• Array

Show the cofactor aij of matrix A

• (-1)i+jMij

• вij

• Мijаij

• (-1)i-j|A|

• (-1)i-jMij

From the following matrices, indicate the identity matrix

Show the triangular matrix from the following matrices

Determinant obtained by crossing out the column and row where element aij intersects

• cofactor for element aij

• determinant of aij

• minor for element aij

• a function to define the element aij

• matrix for element aij

What is the quantity of the vector's length

• scalar quantity

• vector quantity

• connector

• multiplier

• pair quantity

From the given matrices below, specify the diagonal matrix

Find the matrix C that is the sum of the matrices A + B

Give the correct statement. If the determinant of the system of linear equations is not equal to 0, then the system has

• infinitely many solutions

• No solution

• only one solution

• only three solutions

• No solution at all

Calculate the determinant