જો $x \neq 0$ અને $f(x)$ એ $8 f(x) + 6 f(\frac{1}{x}) = x + 5$ નું પાલન કરે છે,તો $x = 1$ આગળ $\frac{d}{dx} (x^2 f(x))$ ની કિંમત શોધો.

  • A
    $\frac{1}{14}$
  • B
    $\frac{25}{14}$
  • C
    $\frac{9}{14}$
  • D
    $\frac{19}{14}$

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જો $f(2) = 4$ અને $f'(2) = 1$ હોય,તો $\mathop {\lim }\limits_{x \to 2} \frac{xf(2) - 2f(x)}{x - 2} = $

જો $y = \log_{e} x^3 + 3 \sin^{-1} x + k x^2$ અને $y'(\frac{1}{2}) = 2 \sqrt{3}$ હોય,તો $k =$

$x = \frac{1-\sqrt{y}}{1+\sqrt{y}} \Rightarrow \frac{dy}{dx}$ ની કિંમત શોધો.

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