જો $2 \tan^2 \theta - 4 \sec \theta + 3 = 0$ હોય,તો $2 \sec \theta =$

  • A
    $3$
  • B
    $2 + \sqrt{2}$ અને $2 - \sqrt{2}$
  • C
    $2 - \sqrt{2}$
  • D
    $2 + \sqrt{2}$

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જો $\tan {3^o} + 2\tan {6^o} + 4\tan {12^o} + 8\cot {24^o} = \cot {\theta ^o}$ હોય,તો:

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