Fundamentholfundamenthol
JEE Main2019Math
Q.

Let dR, and {\text{A}} = \,\left[ {\begin{array}{*{20}{c}} { - 2}{4 + d}{\left( {\sin \theta } \right) - 2} \\ 1{\left( {\sin \theta } \right) + 2}d \\ 5{\left( {2\sin \theta } \right) - d}{\left( { - \sin \theta } \right) + 2 + 2d} \end{array}} \right],

If the minimum value of det(A) is 8, then a value of d is :

  1. A

    –7

  2. B

  3. C

    –5

  4. D

Solution

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