1.

Let alpha,beta denote the cube roots ofunity other than l and alphaanebeta. Let s=sum_(n=0)^(302)(-1)^(n)((alpha)/(beta))^(n). Then the value of s is

Answer»

EITHER -`2OMEGA` or-`2omega^(2)`
either `-2omega` or `2omega^(2)`
either `2omega` or `-2omega^(2)`
either `2omega` or `2omega^(2)`

ANSWER :A


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