List of top Mathematics Questions on Determinants asked in TS EAMCET

Let \[ A= \begin{bmatrix} x&2&-1\\ -2&1&2x\\ 3x&2&1 \end{bmatrix} \] and \[ det(A)=f(x) \] If \(f(x)\) attains minimum value \(m\) at \(x=n\), then \[ \left|\frac{m}{n}\right|= \]