यदि $I_n = \int (\ln x)^n dx$ है,तो $I_n + n I_{n-1}$ का मान ज्ञात कीजिए।

  • A
    $x(\ln x)^{n-1} + k$
  • B
    $x(\ln x)^n + k$
  • C
    $\frac{(\ln x)^n}{x} + k$
  • D
    $\frac{(\ln x)^{n-1}}{x} + k$

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