यदि $y = \frac{x}{2}\sqrt{a^2 + x^2} + \frac{a^2}{2}\log(x + \sqrt{x^2 + a^2})$ है,तो $\frac{dy}{dx} = $

  • A
    $\sqrt{x^2 + a^2}$
  • B
    $\frac{1}{\sqrt{x^2 + a^2}}$
  • C
    $2\sqrt{x^2 + a^2}$
  • D
    $\frac{2}{\sqrt{x^2 + a^2}}$

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$f(x) = x|x|$ का अवकलज क्या है?

यदि $[x]$ महत्तम पूर्णांक फलन को दर्शाता है और $f(x) = x - [x] - \cos x$ है,तो $f^{\prime}\left(\frac{\pi}{2}\right) = $

यदि $f:R \to R$ एक अवकलनीय फलन है और $f(1) = 4$ है,तो $\lim_{x \to 1} \int_4^{f(x)} \frac{2t}{x - 1} dt$ का मान ज्ञात कीजिए।

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यदि $y = \log \tan \left(\frac{x}{2}\right) + \sin^{-1}(\cos x)$ है,तो $\frac{dy}{dx} = $

यदि $f(x) = \sqrt{1 + \cos^2(x^2)}$ है,तो $f^{\prime}\left(\frac{\sqrt{\pi}}{2}\right)$ का मान है

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