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JEE Math Practice Question

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

  1. A.$$\left( {{3 \over 2},3} \right]$$
  2. B.$$\left( {0,{3 \over 2}} \right]$$
  3. C.$$\left[ {{5 \over 2},4} \right)$$
  4. D.$$\left( {1,{5 \over 2}} \right]$$

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