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

  • A
    $\frac{y-7 x}{7 x-y}$
  • B
    $\frac{7 y-x}{y-7 x}$
  • C
    $\frac{7 x+y}{x-7 y}$
  • D
    $\frac{y+7 x}{7 y-x}$

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જો $2x^2 - 3xy + y^2 + x + 2y - 8 = 0$ હોય,તો $\frac{dy}{dx}$ શોધો.

જો $y^{2}+\log _{e}\left(\cos ^{2} x\right)=y, x \in\left(-\frac{\pi}{2}, \frac{\pi}{2}\right),$ હોય,તો

જો $x^{1/2} y^{1/3} = (x + y)^n$ અને $x \frac{dy}{dx} - y = 0$ હોય, તો $n =$ શોધો.

જો $y=1+xe^y$ હોય,તો $\frac{dy}{dx}=$

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