Sunday, 14 September 2014

Show that product of integer polynomial values for arguments being complex roots of unity is integer.

P(x) is polynomial with integer coefficients and w is complex (primitive) root of unity of a degree n. Show that P(1)P(w)P(w2)...P(wn1) is integer number for every natural number n.

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real analysis - How to find limhrightarrow0fracsin(ha)h

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