જો $f(\alpha) = \int_{1}^{\alpha} \frac{\log_{10} t}{1+t} dt, \alpha > 0$ હોય,તો $f(e^{3}) + f(e^{-3})$ ની કિંમત શોધો.

  • A
    $9$
  • B
    $\frac{9}{2}$
  • C
    $\frac{9}{\log_{e}(10)}$
  • D
    $\frac{9}{2 \log_{e}(10)}$

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