જો $2x^2 - 3xy + 4y^2 + 2x - 3y + 4 = 0$ હોય, તો $\left(\frac{dy}{dx}\right)_{(3,2)} = $

  • A
    $-5$
  • B
    $\frac{5}{7}$
  • C
    $-2$
  • D
    $\frac{2}{7}$

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