If A = \left[ {\begin{array}{*{20}{c}} 1{\sin \theta }1 \\ { - \sin \theta }1{\sin \theta } \\ { - 1}{ - \sin \theta }1 \end{array}} \right]; then for all $\theta \in \left(\frac{3\pi }{4},\frac{5\pi }{4}\right)$det (A) lies in the interval :