$\frac{d^n}{dx^n}(e^{2x} + e^{-2x}) = $

  • A
    $e^{2x} + (-1)^n e^{-2x}$
  • B
    $2^n(e^{2x} - e^{-2x})$
  • C
    $2^n[e^{2x} + (-1)^n e^{-2x}]$
  • D
    इनमें से कोई नहीं

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