જો $3 f(x)-2 f\left(\frac{1}{x}\right)=x$ હોય,તો $f^{\prime}(2)$ ની કિંમત શોધો.

  • A
    $\frac{1}{2}$
  • B
    $\frac{-1}{2}$
  • C
    $1$
  • D
    $-1$

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એક વિધેય $f: R \rightarrow R$ એવું છે કે $y f(x+y) + \cos(mxy) = 1 + y f(x)$. જો $m=2$ હોય, તો $f'(x) =$

ધારો કે $f:R \to R$ એવું છે કે $f(1) = 3$ અને $f'(1) = 6$. તો $\lim_{x \to 0} \left\{ \frac{f(1 + x)}{f(1)} \right\}^{\frac{1}{x}}$ ની કિંમત શોધો.

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$\frac{d}{dx}(\sin(x^2) + \cos(x^2)) = $ . . . . . .

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