જો $x^2+y^2=t+\frac{1}{t}$ અને $x^4+y^4=t^2+\frac{1}{t^2}$ હોય,તો $x^3 y \frac{dy}{dx}$ ની કિંમત શું થાય?

  • A
    $-1$
  • B
    $1$
  • C
    $0$
  • D
    $t$

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જો $2x^y + 3y^x = 20$ હોય,તો $(2, 2)$ આગળ $\frac{dy}{dx}$ ની કિંમત શોધો.

જો $y^{\cos x}=x^{\sin y}$ હોય,તો $\frac{d y}{d x}=$

બે વક્રો $x^{3}-3xy^{2}+2=0$ અને $3x^{2}y-y^{3}=2$:

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

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