1.
Let [x][x] denote the greatest integer less than or equal to xx. If
A=([x+1][x−2][x−3][x−1][x+3][x+2][x][x−2][x+4])A = \begin{pmatrix} [x+1] & [x-2] & [x-3] \\ [x-1] & [x+3] & [x+2] \\ [x] & [x-2] & [x+4] \end{pmatrix}

and det⁡(A)=192\det(A) = 192, then the set of values of xx lies in the interval: