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સંકર સંખ્યા $z=\frac{i-1}{\cos \frac{\pi}{3}+i \sin \frac{\pi}{3}}=...........$

• A
  $\sqrt{2}\left(\cos \frac{5 \pi}{12}+ i \sin \frac{5 \pi}{12}\right)$
• B
  $\cos \frac{\pi}{12}- i \sin \frac{\pi}{12}$
• C
  $\sqrt{2}\left(\cos \frac{\pi}{12}+ i \sin \frac{\pi}{12}\right)$
• D
  $\sqrt{2} i \left(\cos \frac{5 \pi}{12}- i \sin \frac{5 \pi}{12}\right)$