यदि $I_{n}=\int_0^{\frac{\pi}{4}} \tan ^n x \, dx$ है,तो $I_{13}+I_{11}=$

  • A
    $\frac{1}{13}$
  • B
    $\frac{1}{12}$
  • C
    $\frac{1}{10}$
  • D
    $\frac{1}{11}$

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