If ${x^2}{e^y} + 2xy{e^x} + 13 = 0$,then $\frac{dy}{dx}$ equals

  • A
    $-\frac{2x{e^{y-x}} + 2y(x+1)}{x(x{e^{y-x}} + 2)}$
  • B
    $\frac{2x{e^{x-y}} + 2y(x+1)}{x(x{e^{y-x}} + 2)}$
  • C
    $-\frac{2x{e^{x-y}} + 2y(x+1)}{x(x{e^{x-y}} + 2)}$
  • D
    None of these

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