If vmatrix6 & 7\\ 3 & 8vmatrix = vmatrix3x & 6\\ -1 & xvmatrix, then the sum of values of x is equal Option 1: 7 Option 2: 2sqrt(7) Option 3: 21 Option 4: 0

The answer is '0'. View full solution:

CUET Mathematics - If vmatrix6 & 7\\ 3 & 8vmatrix = vmatrix3x & 6\\ -1 & xvmatrix, then the sum of values of x is equal | PYQs + Solutions

CUET Mathematics 2026 18th May Shift 1

Algebra

Easy

core

$2\sqrt{7}$

✅ Correct Option: 4

Related questions:

29th May Shift 1

Let $A=\begin{bmatrix}1 & 0 \\ -1 & 7\end{bmatrix}$ and $B=\begin{bmatrix}0 & 4 \\ -1 & 7\end{bmatrix}$ then

Match List-I with List-II

List-I	List-II
Determinants	Value
(A) $\left\vert A^{2} \right\vert$	(I) $28$
(B) $\left\vert AB^{T} \right\vert$	(II) $7$
(C) $\left\vert \text{adj } A \right\vert$	(III) $16$
(D) $\left\vert 2B \right\vert$	(IV) $49$

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21 May Shift 1

If A and B are symmetric matrices of same order, then which of the following are correct?

(A) AB-BA is a skew-symmetric matrix.

(B) AB+BA is a skew-symmetric matrix.

(D) AB+BA is a symmetric matrix.

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13 May Shift 2

If $A = \begin{bmatrix} a & 4 & -5 \\ d & b & -6 \\ 5 & e & c \end{bmatrix}$ is a skew symmetric matrix, then value of $a + b + c + d + e$ is equal to

CUET Mathematics 2026 18th May Shift 1 PYQs

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