O level Matrices and Determinants Quiz 1

15 Questions

Quiz Description

In this quiz, we are going to focus on what a matrix is and what you can do to determine or calculate the determinant of a 2x2 matrix. The questions provided to you by gcequiz.com in this quiz, o level matrices and determinants quiz 1, have been set based on the national syllabus for the ordinary level.

A matrix is a set of numbers which have been arranged in rows and columns so as to obtain the form of a rectangular array. These numbers are sometimes referred to as the entries of the matrix or the elements of the matrix. Now when we talk about a matrix being an nxm matrix, we simply mean that it has n rows and m columns and for a 2x2 matrix, the determinant is simply the product of the entries on the leading diagonal minus the product of the entries of the non-leading diagonal.

To test your knowledge on this particular aspect of ordinary level mathematics, you can go ahead and answer the quiz. 

Good Luck

1:

 If the order of matrix A is m×p. And the order of B is p×n. Then the order of matrix AB is ? 


Correct
  • 1:
    n × p
  • 2:
    m × n
  • 3:
    n × p
  • 4:
    n × m
2:

 If A and B are matrices, then which from the following is true ? 


Correct
  • 1:
    AB ≠ BA
  • 2:
    (At)t ≠ A
  • 3:
    A + B ≠ B + A
  • 4:
    all are true
3:

 The number of non-zero rows in an echlon form is called ? 


Correct
  • 1:
    rank of a matrix
  • 2:
    cofactor of the matrix
  • 3:
    reduced echlon form
  • 4:
    conjugate of the matrix
4:

 Transpose of a rectangular matrix is a 


Correct
  • 1:
    scaler matrix
  • 2:
    square matrix
  • 3:
    diagonal matrix
  • 4:
    rectangular matrix
5:

 Transpose of a column matrix is 


Correct
  • 1:
    row matrix
  • 2:
    zero matrix
  • 3:
    column matrix
  • 4:
    diagonal matrix
6:

 Two matrices A and B are multiplied to get AB if 


Correct
  • 1:
    both are rectangular
  • 2:
    both have same order
  • 3:
    no of columns of A is equal to columns of B
  • 4:
    no of rows of A is equal to no of columns of B
7:

 If |A| = 0, then A is 


Correct
  • 1:
    0
  • 2:
    zero matrix
  • 3:
    singular matrix
  • 4:
    non-singular matrix
8:

 If A is a symmetric matrix, then At = 


Correct
  • 1:
    0
  • 2:
    A
  • 3:
    diagonal matrix
  • 4:
    |A|
9:

 Additive inverse of a matrix A is 


Correct
  • 1:
    adj A ⁄ |A|
  • 2:
    A²
  • 3:
    |A|
  • 4:
    A
10:

 For a non-trivial solution | A | is 


Correct
  • 1:
    |A| > 0
  • 2:
    |A| < 0
  • 3:
    |A| ≠ 0
  • 4:
    |A| = 0
11:

  If a matrix has m rows and n columns then order is 


Correct
  • 1:
    m x n
  • 2:
    m x m
  • 3:
    m + n
  • 4:
    n x n
12:

 Equations having a common solution are called 


Correct
  • 1:
    linear equations
  • 2:
    simultaneous equations
  • 3:
    homogeneous equations
  • 4:
    None of Above
13:

 A matrix having m rows and n columns with m = n is said to be a 


Correct
  • 1:
    scaler matrix
  • 2:
    identity matrix
  • 3:
    square matrix
  • 4:
    rectangular matrix
14:

 Order of a matrix [ 2 5 7 ] is 


Correct
  • 1:
    1 x 1
  • 2:
    1 x 3
  • 3:
    3 x 1
  • 4:
    3 x 3
15:

 Two matrices A and B are equal if 


Correct
  • 1:
    both are rectangular
  • 2:
    both have same order
  • 3:
    no of columns of A is equal to columns of B
  • 4:
    both have same order and equal corresponding elements

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O level Matrices and Determinants Quiz 1
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