$\left(\frac{1+i}{1-i}\right)^{228} = $

  • A
    $-4\left(\frac{1-i}{1+i}\right)^{226}$
  • B
    $4\left(\frac{1-i}{1+i}\right)^{226}$
  • C
    $\left(\frac{1-i}{1+i}\right)^{228}$
  • D
    $-\left(\frac{1-i}{1+i}\right)^{228}$

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