The solution of $tan\,\, 2\theta\,\, tan\theta = 1$ is

  • A

    $\frac{\pi }{3}$

  • B

    $(6n \pm 1)\frac{\pi }{6}$

  • C

    $(4n \pm 1)\frac{\pi }{6}$

  • D

    $(2n \pm 1)\frac{\pi }{6}$

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