If A is a square matrix of order 3 such that |A|=2, then the value of |adj(adj A)| is : Option 1: 2 Option 2: 4 Option 3: 8 Option 4: 16

The answer is '16'. View full solution:

CUET Mathematics - If A is a square matrix of order 3 such that |A|=2, then the value of |adj(adj A)| is : | PYQs + Solutions

CUET Mathematics 2023 15 June Shift 2

Algebra

Medium

✅ Correct Option: 4

Related questions:

30 May Shift 1

If $A$ and $B$ are invertible matrices of order $3$ then match List-I with List-II

List-I	List-II
(A) $\text{adj}(A)$	(I) $B^{-1} A^{-1}$
(B) $(AB)^{-1}$	(II) $\vert A\vert ^{-1}$
(C) $\vert A^{-1}\vert$	(III) $\vert A\vert ^2$
(D) $\vert \text{adj} A\vert$	(IV) $\vert A\vert A^{-1}$

Choose the correct answer from the options given below:

17 Aug Shift 2

If $2\begin{bmatrix}3 & 4 \\ 5 & x\end{bmatrix} + \begin{bmatrix}1 & y \\ 0 & 1\end{bmatrix} = \begin{bmatrix}7 & 0 \\ 10 & 5\end{bmatrix}$ , then the value of $x-y$ is :

23 May Shift 3

If $x, y$ & $z$ are non zero real numbers, the inverse of matrix $A = \begin{bmatrix} x & 0 & 0 \\ 0 & y & 0 \\ 0 & 0 & z \end{bmatrix}$ is :

CUET Mathematics 2023 15 June Shift 2 PYQs

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