CUET Mathematics - Let A = [a_ij]_2 x 4 and B = [b_ij]_4 x 2, then |3AB| is equal to | PYQs + Solutions

CUET Mathematics 2025 30 May Shift 1

Algebra

Medium

core

$3^2|AB|$

$3^4|AB|$

$3^2|A||B|$

$3^4|A||B|$

✅ Correct Option: 1

Related questions:

30 May Shift 1

Let $A = [a_{ij}]_{n \times n}$ be a matrix, then match List-I with List-II

List-I	List-II
(A) $\|A\| = 0$	(I) $A$ is a symmetric matrix
(B) $\|A\| \neq 0$	(II) $A$ is a skew-symmetric matrix
(C) $A^T = A$	(III) $A$ is a singular matrix
(D) $A^T = -A$	(IV) $A$ is a non-singular matrix

Choose the correct answer from the options given below:

3 June Shift 2

If A and B are symmetric matrices, then AB - BA is

21 May Shift 2

If $A = \begin{bmatrix} 4 & 3 \\ 2 & -1 \\ 1 & 0 \end{bmatrix}$ and $B^T = \begin{bmatrix} 1 & 2 & 3 \\ 2 & 1 & -1 \end{bmatrix}$ , then $A - B$ is equal to

CUET Mathematics 2025 30 May Shift 1 PYQs

Keyboard Shortcuts