જો ${x^2} + {y^2} = t - \frac{1}{t}$ અને ${x^4} + {y^4} = {t^2} + \frac{1}{t^2}$ હોય,તો ${x^3}y\frac{dy}{dx} = $

  • A
    $1$
  • B
    $2$
  • C
    $3$
  • D
    $4$

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$x\sqrt{1 + y} + y\sqrt{1 + x} = 0$ હોય,તો $\frac{dy}{dx} = $

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જો $\ln \left( {(e - 1){e^{xy}} + {x^2}} \right) = {x^2} + {y^2}$ હોય,તો $\left. {\frac{{dy}}{{dx}}} \right|_{(1,0)}$ ની કિંમત શોધો.

જો $\cos ^{-1}\left(\frac{x^2-y^2}{x^2+y^2}\right)=k$ (અચળ) હોય, તો $\frac{d y}{d x}$ ની કિંમત શોધો.

જો $\ln (x + y) = 2xy$ હોય,તો $y'(0) =$

જો $\cos ^{-1}\left(\frac{y}{b}\right)=n \log \left(\frac{x}{n}\right)$ હોય,તો

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