જો $8 f(x)+6 f\left(\frac{1}{x}\right)=x+5$ અને $y=x^2 f(x)$ હોય,તો $x=-1$ આગળ $\frac{d y}{d x}$ ની કિંમત શોધો.

  • A
    $14$
  • B
    $-14$
  • C
    $\frac{1}{14}$
  • D
    $-\frac{1}{14}$

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જ્યારે $x=\sqrt{2}$ હોય ત્યારે $\frac{d}{d x}\left[\log \left(\sin \sqrt{\frac{x^2+1}{x^2+2}}\right)\right]$ નું મૂલ્ય શોધો.

જો $y = \sqrt{\sin \sqrt{x}}$ હોય,તો $\frac{dy}{dx} = $

જો $y = \log {\left( \frac{1 + x}{1 - x} \right)^{1/4}} - \frac{1}{2}{\tan ^{ - 1}}x$ હોય,તો $\frac{dy}{dx} = $

જો $g(x) = (x^2 + 2x + 1) \cdot f(x)$ એ રીતે હોય કે $f(0) = 5$ અને $\lim_{x \to 0} \frac{f(x) - 5}{x} = 4$, તો $g'(0) = $

જો $f(x)=\cosh ^{-1}\left(\frac{1-x}{1+x}\right)$ સુવ્યાખ્યાયિત હોય, તો $f^{\prime}(x)=$

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