જો $x^2 \tan ^{-1} \frac{y}{x}-y^2 \tan ^{-1} \frac{x}{y}=k$ હોય,તો $\left(\frac{d y}{d x}\right)_{(1,1)}=$

  • A
    $0$
  • B
    $\pi / 4$
  • C
    $1$
  • D
    $\pi / 2$

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

જો $y = \sqrt{\cos x^2 + \sqrt{\cos x^2 + \sqrt{\cos x^2 + \dots \infty}}}$ અને $\frac{dy}{dx} = \frac{f(x)}{2y - 1}$ હોય, તો $\int f(x) dx = \dots$

જો $\sin^2 x + 2\cos y + xy = 0$ હોય,તો $\frac{dy}{dx} = $

જો ${x^y} = {y^x}$ હોય,તો $\frac{dy}{dx} = $

જો $x^y = e^{x - y}$ હોય,તો $x = 1$ આગળ $\frac{dy}{dx}$ ની કિંમત . . . . . . છે.

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