CBSE Class 12 Maths Chapter 3 Matrices MCQs

CBSE 12th Maths Matrices MCQs: Check here multiple choice questions of CBSE Class 12 Mathematics Chapter 3 Matrices.

Dec 15, 2023, 17:59 IST

Maths 12th Matrices MCQs: The Central Board of Secondary Education (CBSE) conducts the annual board exams for class 12, and it is considered one of the most important tests a student will face in his school life. The board exam comprises a vast syllabus and different types of questions.

Multiple choice questions are asked in the exam as well and hold significant weightage, especially for CBSE Class 12 Mathematics papers.

Maths is a popular subject among students, and the MCQs can boost the scores because they're a short and simple section. However, the CBSE 12th maths chapter 3 Matrices MCQs are often tricky and calculative. Matrices demand intensive practice, and so we bring you the following set of MCQs.

Matrices consist of hard calculations and many formulae that students need to memorise. But if you check out the following MCQs for CBSE Class 12 Maths Chapter 3 Matrices, it’s sure to calm your mind and improve your confidence. The questions vary in difficulty level from easy to hard.

MCQs for CBSE Class 12 Maths Chapter 3 Matrices

Question 1: If A = [5 6 7] and B = [2 7 1], then A + B = ?

(a) [7 12 8]

(b) [7 13 8]

(d) [7 13 6]

Question 2: If A is a square matrix such that A² = A, then (I – A)³ + A is equal to

(a) I

(b) 0

(d) I + A

Question 3: If A and B are two matrices of the order 3 × m and 3 × n, respectively, and m = n, then the order of matrix (5A – 2B) is

(a) m x 3

(b) 3 x 3

(d) 3 x n

Question 4: The number of all possible matrices of order 3 x 3 with each entry 0 or 1 is

(a) 27

(b) 18

(d) 512

Also Check: NCERT Solutions for Class 12 Maths PDF: Updated for 2023-24

Question 5: If A and B are symmetric matrices of the same order, then (AB′–BA′) is a

(a) Skew symmetric matrix

(b) Null matrix

(d) None of these

Question 6: Matrices A and B will be inverse of each other only if:

(a) AB = BA

(b) AB-BA = 0

(d) AB = BA = I

Question 7: If A = [a_ij] is a square matrix of order 2 such that a_ij = 1, when i ≠ j and a_ij = 0, when i = j, then A² is

Question 8:

(a) identity matrix

(b) symmetric matrix

(d) none of these

Question 9: If A = is a symmetric matrix then x is

(a) 3

(b) 6

(d) 0

Question 10: Matrices Question 10

(a) 28/3

(b) 32/3

(d) 10

Answers

Question Number	Answers
1	(b) [7 13 8]
2	(a) I
3	(d) 3 x n
4	(d) 512
5	(a) Skew symmetric matrix
6	(d) AB = BA = I
7	(d)
8	(b) Symmetric matrix
9	(b) 6
10	(b) 32/3