यदि $f'(x) = \frac{1}{x} + x$ और $f(1) = \frac{5}{2}$ है,तो $f(x) = $

  • A
    $\log x + \frac{x^2}{2} + 2$
  • B
    $\log x + \frac{x^2}{2} + 1$
  • C
    $\log x - \frac{x^2}{2} + 2$
  • D
    $\log x - \frac{x^2}{2} + 1$

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