If A is a square matrix of order 3, then |adj A| is equal to: Option 1: |A| Option 2: |A|^2 Option 3: |A|^3 Option 4: 3|A|

The answer is '|A|^2'. View full solution:

CUET Mathematics - If A is a square matrix of order 3, then |adj A| is equal to: | PYQs + Solutions

CUET Mathematics 2022 25 May Shift 1

Algebra

Easy

$|A|$

$|A|^2$

$|A|^3$

$3|A|$

✅ Correct Option: 2

Related questions:

15 June Shift 2

The value of $2y - 3x$ , if $2\begin{bmatrix} x & 5 \\ 7 & y-3 \end{bmatrix} + \begin{bmatrix} 3 & -4 \\ 1 & 2 \end{bmatrix} = \begin{bmatrix} 7 & 6 \\ 15 & 14 \end{bmatrix}$ is :

27 May Shift 1

The following system of equations:

$x + y - z = 7$

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does not possess a solution if the value of $\lambda$ is:

13 May Shift 2

Let $A = \begin{bmatrix} 2 & -3 & 4 \\ 0 & 1 & 5 \\ -4 & 2 & 3 \end{bmatrix}$ and $a_{ij}$ be any element of matrix A, i, j ∈ {1,2,3}, then which of the following are TRUE?

(A) Minor of $a_{23} = 16$

(B) Minor of $a_{23} = -8$

(D) Cofactor of $a_{23} = 8$

(E) Cofactor of $a_{13} = 4$

Choose the correct answer from the options given below:

CUET Mathematics 2022 25 May Shift 1 PYQs

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