Exercise 4.1.6

Answers

If $N = 6$ , We have $w = e^{2 πi ∕ 6}$ , then

$1 + w + w^{2} + w^{3} + w^{4} + w^{5} = \frac{1 - w^{6}}{1 - w} = \frac{1 - e^{2 πi}}{1 - w} = 0$

niuers

2020-03-20 00:00