Question:medium

If the matrix \[ A= \begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix} \] then the value of $|A|$ is:

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For a $2\times2$ matrix, determinant is always: \[ ad-bc \] Multiply the principal diagonal first and then subtract the product of the other diagonal.

Updated On: May 16, 2026

$-2$
$2$
$10$
$-10$

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The Correct Option is A

Solution and Explanation

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If the matrix \[ A= \begin{bmatrix} 1 & 2 \\ 3 & 4 \end{bmatrix} \] then the value of $|A|$ is:

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The Correct Option is A

Solution and Explanation

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