Properties of complex numbers.
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Given
A=(-1/2+isqrt(3)/2)^n
1. Show that A is real for any natural n
2. Show that for n=3K where K is a natural number, A=2
https://brainmass.com/math/number-theory/properties-complex-numbers-22644
Solution Summary
Simple usage of the De-Moivre identity are solved. The natural numbers are given.
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