1.

\[\frac{{{(-1+i\sqrt{3})}^{15}}}{{{(1-i)}^{20}}}+\frac{{{(-1-i\sqrt{3})}^{15}}}{{{(1+i)}^{20}}}\] is equal to [AMU 2000]

A. -64
B. -32
C. -16
D. \[\frac{1}{16}\]
Answer» B. -32


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