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If \[ A= \begin{bmatrix} 1& 7& 49\\ 2& 16& 130\\ 2& 18& 170 \end{bmatrix}, \] then $\det(A)=$

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Before expanding a determinant, always try elementary row operations to create zeros. This reduces calculations significantly and minimizes mistakes.

Updated On: Jun 17, 2026

$2^3$
$2^4$
$2^5$
$2^6$

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The Correct Option is C

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