$\frac{d}{dx} \left( \tan^{-1} \frac{x}{\sqrt{a^2 - x^2}} \right) = $

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

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$x$ के सापेक्ष फलन का अवकलन कीजिए: $\cot ^{-1}\left[\frac{\sqrt{1+\sin x}+\sqrt{1-\sin x}}{\sqrt{1+\sin x}-\sqrt{1-\sin x}}\right]$,जहाँ $0 < x < \frac{\pi}{2}$.

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यदि $f(x) = \sin^{-1}\left(\frac{2 \cdot 3^x}{1+9^x}\right)$ है,तो $f^{\prime}\left(\frac{1}{2}\right)$ का मान ज्ञात कीजिए।

$\frac{d}{dx} \sin^{-1}(2ax\sqrt{1 - a^2x^2}) = $

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