$\int {\frac{{{e^{2x}} - 1}}{{{e^{2x}} + 1}}} \,dx = $

  • A
    $\frac{{{e^{2x}} - 1}}{{{e^{2x}} + 1}} + c$
  • B
    $\log ({e^{2x}} + 1) - x + c$
  • C
    $\log ({e^{2x}} + 1) + c$
  • D
    इनमें से कोई नहीं

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