# Matrices and Determinants MCQs

Mathematics → Matrices & Determinants MCQs

Matrices and Determinants Multiple Choice Questions (MCQs) Page-1. The following quizzes are from Matrices, Determinants, their properties & key facts. Find answers and solutions to the questions at the bottom of the page.

## Pages: 1 | 2

1. If the order of matrix A is $m\times p$. And the order of B is $p\times n$. Then the order of matrix AB is ?
(A) m × n
(B) n × m
(C) n × p
(D) m × p

2. If A and B are matrices, then which from the following is true ?
(A) A + B ≠ B + A
(B) (At)t ≠ A
(C) AB ≠ BA
(D) all are true

3. What is ‘a’, if

is a singular matrix ?
(A) 5
(B) 6
(C) 7
(D) 8

4. If

then |A| = ?
(A) 2
(B) 3
(C) 4
(D) 5

5. If

then order of matrix A = ?
(A) 2 x 2
(B) 2 x 3
(C) 3 x 2
(D) 3 x 3