Class 12Mathematics3 and 4 .Determinants and MatricesExpansion of determinants, Solution of equation in the form of determinants and area of triangle and Equation of Line
EasyFind the values of $x$ for which $\left|\begin{array}{ll}3 & x \\ x & 1\end{array}\right|=\left|\begin{array}{ll}3 & 2 \\ 4 & 1\end{array}\right|$.
- A$x=\pm 2 \sqrt{2}$
- B$x=\pm 3 \sqrt{2}$
- C$x=\pm \sqrt{2}$
- D$x=\pm 4 \sqrt{2}$
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