જો $\tan^{-1}(x^2 + y^2) = \alpha$ હોય,તો $\frac{dy}{dx}$ ની કિંમત શોધો.

  • A
    $-\frac{x}{y}$
  • B
    $xy$
  • C
    $\frac{y}{x}$
  • D
    $-xy$

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જો $x > 0$ અને $x^y = e^{x-y}$ હોય, તો $\frac{dy}{dx}$ ની કિંમત શોધો.

જો $\sqrt{\frac{y}{x}}+\sqrt{\frac{x}{y}}=2$ હોય, તો $\frac{dy}{dx}$ ની કિંમત શોધો.

જો $\tan y = \frac{x \sin \alpha}{1-x \cos \alpha}$ અને $\frac{dy}{dx} = \frac{m}{x^2+2nx+1}$ હોય,તો $m^2+n^2$ ની કિંમત શોધો.

જો $\sqrt{\frac{x}{y}}+\sqrt{\frac{y}{x}}=4$ હોય,તો $\frac{d y}{d x}=$

જો $\sin(xy) + \cos(xy) = 0$ હોય,તો $\frac{dy}{dx} = $

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