समीकरण $\frac{d^2y}{dx^2} = e^{-2x}$ का हल है

  • A
    $\frac{1}{4}e^{-2x}$
  • B
    $\frac{1}{4}e^{-2x} + cx + d$
  • C
    $\frac{1}{4}e^{-2x} + cx^2 + d$
  • D
    $\frac{1}{4}e^{-2x} + c + d$

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