$\int {(1 + x - {x^{ - 1}}){e^{x + {x^{ - 1}}}}\,dx} = $

  • A
    $(x + 1){e^{x + {x^{ - 1}}}} + c$
  • B
    $(x - 1){e^{x + {x^{ - 1}}}} + c$
  • C
    $- x{e^{x + {x^{ - 1}}}} + c$
  • D
    $x{e^{x + {x^{ - 1}}}} + c$

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