यदि $3{\sin ^{ - 1}}\frac{{2x}}{{1 + {x^2}}} - 4{\cos ^{ - 1}}\frac{{1 - {x^2}}}{{1 + {x^2}}} + 2{\tan ^{ - 1}}\frac{{2x}}{{1 - {x^2}}} = \frac{\pi }{3}$ है,तो $x$ =

  • A
    $\sqrt 3 $
  • B
    $\frac{1}{{\sqrt 3 }}$
  • C
    $1$
  • D
    इनमें से कोई नहीं

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