Modulus and principal argument of a given complex number

1. A.
   $\sqrt{2}i\left( \cos\frac{5\pi}{12} - isin\frac{5\pi}{12} \right)$
2. B.
   $\sqrt{2}\left( \cos\frac{\pi}{12} + isin\frac{\pi}{12} \right)$
3. C.
   $\sqrt{2}\left( \cos\frac{5\pi}{12} + isin\frac{5\pi}{12} \right)$
4. D.
   $\cos\frac{\pi}{12} - isin\frac{\pi}{12}$

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1. A.
   $\left( 2sec\frac{3\pi}{8},\frac{3\pi}{8} \right)$
2. B.
   $\left( 2sec\frac{3\pi}{8},\frac{5\pi}{8} \right)$
3. C.
   $\left( 2sec\frac{5\pi}{8},\frac{3\pi}{8} \right)$
4. D.
   $\left( 2sec\frac{11\pi}{8},\frac{11\pi}{8} \right)$

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