फलन $\log (\log x)$ का द्वितीय कोटि का अवकलज ज्ञात कीजिए।

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

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