O level Matrices and Determinants Quizzes

Revising O level Matrices with Quizzes

(Matrices quizzes for students doing a level, GCSE, GCE, and necta.) 

Matrix is a topic covered in the GCSE and A level, Today we are going to see what is a matrix, the different types of matrices, operations that can be performed on a matrix, and finally, we will see how our quizzes help you revise effectively for matrices. 

A matrix is a set of numbers arranged in rows and columns so as to form a rectangular array, in other words, a matrix is an array of numbers. Types of matrices can be 2X2, 3X3, etc, a matrix can be defined in NXN fashion and named according. 

Basic operation on matrices

Addition

As said earlier a matrix is an array of numbers, so the addition of numbers in a matrix is done in the following way let's, take  A = [1 3] and B = [5 8 ].  then A+B = [6 11]. To this operation we added the first element in array A to the first element to B, then the second element A to the second element of B in general, the rule goes as follows  A+ B = [A[i]+B[i], A[i]+B[i]], where i is the position of the array which in this case is either 1 or 2. 

Subtraction 

Doing subtraction of matrices we follow the same principle we mention above but just the operation sign changes. example A = [1 5] and B = [8 9] then A - B =  [-7 -4] 

Division

Following the same principles mentioned above and assuming A = [1 5] and B =[2 5], then A/B = [1/2 1].

Multiplication

Unfortunately for us, the multiplication of the matrix is not as  straightforward so we will not be covering it here but don't bother we will refer you to this article that covers all you need, you just need to click here 

We covered all the basic operations need to solve matrices at the O level, they are further topics such as determinant and Transposing but all that can be found in the article i mentioned above. So do you feel ready to try solving Matrices quizzes ? if yes try one below.