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1. $x^{2} - 2 x + 4 = 0$

A. $2^{n} \cos \frac{n π}{6}$
B. $2^{n} \cos \frac{n π}{6}$
C. $2^{n} \cos \frac{n π}{6}$
D. $2^{n} \cos \frac{n π}{6}$

Answer: Option D

Explanation:

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