CUET Mathematics - If A and B are symmetric matrices of the same order, then A B-B A is a : | PYQs + Solutions

CUET Mathematics

Algebra

Easy

common

symmetric matrix

zero matrix

skew symmetric matrix

identity matrix

✅ Correct Option: 3

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If A is a square matrix of order 3 and |A| = -5, then |3A| is equal to

14 May Shift 2

If $A = \begin{bmatrix} 1 & 1 & 1 \\ 1 & 0 & 2 \\ x & 1 & 1 \end{bmatrix}$ and $A^{-1} = \frac{1}{4}\begin{bmatrix} -2 & 0 & y \\ 5 & -2 & -1 \\ 1 & 2 & -1 \end{bmatrix}$ , then values of x and y, are:

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If $A = \begin{bmatrix} 3 & 1 \\ -1 & 2 \end{bmatrix}$ and $I = \begin{bmatrix} 1 & 0 \\ 0 & 1 \end{bmatrix}$ , then the value of $A^2 - 5A + 6I$ is

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