The function $f(x) = 2x^3 - 3x^2 - 12x + 4$ has

  • A
    No maxima and minima
  • B
    One maximum and one minimum
  • C
    Two maxima
  • D
    Two minima

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The minimum distance between a point on the curve $y=e^x$ and a point on the curve $y=\log_e x$ is

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