Practicing Success
Practicing Success
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If $\begin{vmatrix}x-2 & 1 & 2\\1 & 2x & 1\\ -1 & 1 & 1\end{vmatrix} =3 $ then the values of x are : |
1, 2 1, 1 $1, -\frac{1}{2}$ 2, 1 |
$1, -\frac{1}{2}$ |
