CUET Mathematics - If A = bmatrix 4 & 5 \\ 2 & 1 bmatrix and I is an identity matrix of order 2, then A - 3I equals | PYQs + Solutions

CUET Mathematics 2025 14 May Shift 2

Algebra

Medium

applied

$I + 3A^2$

$I + 3A^{-1}$

$2(3I + A^{-1})$

$2(I + 3A^{-1})$

✅ Correct Option: 4

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22 May Shift 1

Let A be a non-singular square matrix of order 3 and $|adj A| = 5$ then $|A|$ is equal to

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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22 May Shift 2

Match List-I with List-II

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CUET Mathematics 2025 14 May Shift 2 PYQs