Matrices 11 General Maths

This matrix has ____ many columns

• 3

• 4

• 5

• 6

The order of this matrix is

• 8

• 2 x 4

• 4 x 2

• Order does not exist

The value of a₄₃ is

(a)  

a₁₁ + a₂₄ =

(a)  

The elements in a matrix are

• the number of rows and columns in the matrix

• the numbers or letters that appear in the rows and columns of a matrix

• the sum of all the numbers in the matrix

• the number of columns in the matrix

How many elements are in the last column of this matrix?

(a)  

This matrix is a

• column matrix

• square matrix

• inverse matrix

• row matrix

This matrix is a

• column matrix

• zero matrix

• 3x4 matrix

• inverse matrix

This matrix is a

• row matrix

• column matrix

• identity matrix

• none of the above

What must be true in order to add two matrices?

• They both must be square

• The order of the matrices must be the same

• The column of the first row must be equal to the row of the second

• The row of the first must be equal to the column of the second