CUET Mathematics - Let A = [a_ij]_2 x 3 and B = [b_ij]_3 x 2, then |5AB| is equal to | PYQs + Solutions

CUET Mathematics 2025 14 May Shift 1

Algebra

Medium

core

$5^2 .|A|.|B|$

$5^3 .|A|.|B|$

$5^2|AB|$

$5^3 |AB|$

✅ Correct Option: 3

Related questions:

30 May Shift 2

The value of $\left|\frac{x^2-x+1}{x+1} - \frac{x-1}{x+1}\right|$ is equal to

27 May Shift 1

Let $A = [a_{ij}]$ is given by $A = \begin{bmatrix} 1 & -1 & 2 \\ 3 & 4 & -5 \\ 2 & -1 & 3 \end{bmatrix}$ . Then the matrix $B = [b_{ij}]$ , where $b_{ij}$ = Minor of $a_{ij}$ is:

3 June Shift 1

If $A = \begin{bmatrix} 1 & 2 \\ 4 & 5 \end{bmatrix}$ , then

Match List-I with List-II

List-I	List-II
(A) det (A)	(I) $-\frac{1}{3}$
(B) det $(A^{-1})$	(II) $-12$
(C) det (2A)	(III) $-3$
(D) det $(3A^T)$	(IV) $-27$

Choose the correct answer from the options given below:

CUET Mathematics 2025 14 May Shift 1 PYQs

Keyboard Shortcuts