જો $f(x) = \sqrt{\log(x^2+x+1) + \sqrt{\cosh(2x-3)}}$ હોય, તો $f'(0) =$

  • A
    $\frac{1}{2 \sqrt{\sqrt{\cosh(3)}}} \left(1 + \frac{\sinh(3)}{\sqrt{\cosh(3)}}\right)$
  • B
    $\frac{1}{2 \sqrt{\sqrt{\cosh(3)}}} \left(\log 3 - \frac{\sinh(3)}{\sqrt{\cosh(3)}}\right)$
  • C
    $\frac{\log 3 \sqrt{\cosh(3)} - \sinh(3)}{2(\cosh(3))^{3/4}}$
  • D
    $\frac{\sqrt{\cosh(3)} - \sinh(3)}{2(\cosh(3))^{3/4}}$

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જો $f: R \rightarrow R$ એ $f(x) = \begin{cases} \frac{x - 2}{x^2 - 3x + 2}, & x \in R - \{1, 2\} \\ 2, & x = 1 \\ 1, & x = 2 \end{cases}$ દ્વારા વ્યાખ્યાયિત હોય,તો $\lim_{x \rightarrow 2} \frac{f(x) - f(2)}{x - 2} = $

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