$(1 - i)^{-i}$ નો વાસ્તવિક ભાગ શોધો.

  • A
    $e^{-\pi/4} \cos \left( \frac{1}{2} \log 2 \right)$
  • B
    $-e^{-\pi/4} \sin \left( \frac{1}{2} \log 2 \right)$
  • C
    $e^{\pi/4} \cos \left( \frac{1}{2} \log 2 \right)$
  • D
    $e^{-\pi/4} \sin \left( \frac{1}{2} \log 2 \right)$

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