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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વિધાન: $x < 0$ માટે,$\frac{d^2}{d x^2}(\log |x|) = \frac{1}{|x|^2}$.
કારણ: $x < 0$ માટે,$|x| = -x$.

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

અચળ $a$ માટે,$\frac{d}{d x}\left(x^{x}+x^{a}+a^{x}+a^{a}\right)$ શું થાય?

જો $y(\alpha)=\sqrt{2\left(\frac{\tan \alpha+\cot \alpha}{1+\tan ^{2} \alpha}\right)+\frac{1}{\sin ^{2} \alpha}}$ જ્યાં $\alpha \in\left(\frac{3 \pi}{4}, \pi\right)$ હોય,તો $\alpha=\frac{5 \pi}{6}$ આગળ $\frac{d y}{d \alpha}$ શોધો.

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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