Show that if c is any 11th root of unity other than unity
Chapter 0, Problem 1.91(choose chapter or problem)
Show that if c is any 11th root of unity other than unity itself. then I + c ..._ c2 + + c11 - 1 = 0. S11gges1io11: Cse the tirst identity in Exercise 9. Sec. 9.
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