CUET Mathematics - If A and B are invertible matrices then which of the following statement is NOT correct? | PYQs + Solutions

CUET Mathematics 2025 14 May Shift 1

Algebra

Medium

core

$adj A = |A|A^{-1}$

$(A + B)^{-1} = A^{-1} + B^{-1}$

$|A^{-1}| = |A|^{-1}$

$(AB)^{-1} = B^{-1}A^{-1}$

✅ Correct Option: 2

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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.

Choose the correct answer from the options given below:

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CUET Mathematics 2025 14 May Shift 1 PYQs

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