સમીકરણ $\tan ^{-1} x+\tan ^{-1} 2 x=\frac{\pi}{4}$ નું સમાધાન કરતી $x$ ની વાસ્તવિક કિંમત છે

  • A
    $\frac{-3 \pm \sqrt{17}}{4}$
  • B
    $-1 \pm \sqrt{3}$
  • C
    $\sqrt{3}-1$
  • D
    $\frac{\sqrt{17}-3}{4}$

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