$\tan {3^o} + 2\tan {6^o} + 4\tan {12^o} + 8\cot {24^o} = \cot {\theta ^o}$ then

  • A

    $cot (10\  \theta )^o =1$

  • B

    $cot (15\  \theta )^o =1$

  • C

    $\cot {\theta ^o} = 0$

  • D

    $\cot {\left( {15\ \theta } \right)^o} = \sqrt 3$

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