Matrix Quiz

What is the plural form of the word "matrix"?

• Matrixes

• Matrices

• Matrixi

• Matrixia

If a matrix has 4 rows and 2 columns, its order is:

• 2 × 4

• 4 × 4

• 2 × 2

• 4 × 2

How many elements does a matrix of order 3 × 5 have?

• 8

• 15

• 10

• 12

In the matrix A = [aᵢⱼ], the element a₃₂ refers to:

• Row 3, Column 2

• Row 2, Column 3

• Column 3, Row 2

• None of these

A matrix with only one row is called:

• Column matrix

• Square matrix

• Row matrix

• Null matrix

A matrix with only one column is called a:

• Rectangular matrix

• Row matrix

• Square matrix

• Column matrix

Which of the following is a square matrix?

• Matrix of order 1 × 2

• Matrix of order 2 × 3

• Matrix of order 3 × 3

• Matrix of order 4 × 2

What is the principal diagonal of the matrix

• 2, 5, 7

• 4, 6, 8

• 3, 1, 9

• 2, 6, 9

A matrix with all elements zero is called:

• Identity matrix

• Diagonal matrix

• Scalar matrix

• Zero or null matrix

Which of the following is a diagonal matrix?

• a

• b

• c

• d