જો $\cot[f(x)] = \frac{3x - x^3}{1 - 3x^2}$ અને $\sin[g(x)] = \frac{1 - x^2}{1 + x^2}$ હોય, તો $\lim_{x \to t} \frac{f(x) - f(t)}{g(x) - g(t)} = \dots$

  • A
    $\frac{3}{2(1+t^2)}$
  • B
    $\frac{3}{2}$
  • C
    $\frac{5}{2}$
  • D
    $-\frac{5}{2(1+t^2)}$

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

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

$\frac{1}{2} < x < 1$ માટે $\sin ^{-1}\left(3 x-4 x^3\right)$ નું $x$ ની સાપેક્ષ વિકલન શું થાય?

$x$ ની સાપેક્ષે નીચેનાનું વિકલન કરો: $\tan ^{-1}\left(\frac{\sin x}{1+\cos x}\right)$

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