यदि $n \geq 2$ के लिए $f(x) = \frac{x}{(1 + nx^n)^{1/n}}$ है,तो $\int x^{n-2} f(x) dx =$

  • A
    $\frac{1}{n(n-1)}(1 + nx^n)^{1 - 1/n} + C$
  • B
    $\frac{1}{(n-1)}(1 + nx^n)^{1 - 1/n} + C$
  • C
    $\frac{1}{n(n-1)}(1 + nx^n)^{1 + 1/n} + C$
  • D
    $\frac{1}{n+1}(1 + nx^n)^{1 + 1/n} + C$

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