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CUET
-- Mathematics - Section A
Determinants
If $\left|\begin{array}{cc}2 x & 5 \\ 8 & x\end{array}\right|=\left|\begin{array}{cc}6 & -2 \\ 7 & 3\end{array}\right|$ then the value of x is:
3
$\pm 3$
6
$\pm 6$
The correct answer is Option (4) → $\pm 6$