Exercise 4.1.2

Answers

$w = e^{2 πi ∕ N}$ , $w_{N}^{M} = {(w_{N})}^{M} = {(e^{2 πi ∕ N})}^{M} = {(e^{2 πi ∕ N})}^{\frac{N}{2}} = e^{πi} = - 1$

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2020-03-20 00:00