જો $f(x) = \cos^{-1} \left[ \frac{1 - (\log x)^2}{1 + (\log x)^2} \right]$ હોય,તો $f'(e) = \_\_\_\_$

  • A
    $1/e$
  • B
    $2/e^2$
  • C
    $2/e$
  • D
    $1$

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Similar Questions

$x$ ની સાપેક્ષમાં વિધેયનું વિકલન કરો: $\cot ^{-1}\left[\frac{\sqrt{1+\sin x}+\sqrt{1-\sin x}}{\sqrt{1+\sin x}-\sqrt{1-\sin x}}\right]$,જ્યાં $0 < x < \frac{\pi}{2}$.

Difficult
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જો $y=\tan ^{-1}\left(\frac{3+2 x}{2-3 x}\right)+\tan ^{-1}\left(\frac{3 x}{1+4 x^2}\right)$ હોય,તો $\frac{d y}{d x}$ ની કિંમત શોધો.

જો $f'(x) = \sin(\log x)$ અને $y = f\left(\frac{2x + 3}{3 - 2x}\right)$ હોય,તો $\frac{dy}{dx} = $

${\tan ^{ - 1}}\left( {\frac{{\sqrt {1 + {x^2}} - 1}}{x}} \right)$ નું ${\tan ^{ - 1}}x$ ની સાપેક્ષે વિકલન ગુણાંક શોધો.

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

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