यदि $I_n = \int \frac{\sin nx}{\sin x} dx$ जहाँ $n = 1, 2, 3, \ldots$,तो $I_6 =$

  • A
    $\frac{3}{5} \sin 3x + \frac{8}{5} \sin^5 x - \sin x + c$
  • B
    $\frac{2}{5} \sin 5x - \frac{5}{3} \sin^3 x - 2 \sin x + c$
  • C
    $\frac{2}{3} \sin 5x - \frac{8}{3} \sin^5 x + 4 \sin x + c$
  • D
    $\frac{2}{5} \sin 5x - \frac{8}{3} \sin^3 x + 4 \sin x + c$

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