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If w is the nth root of unity then what is the value of 1+w^1+w^2+.... |
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Answer» Let, S=1+w+w2+w3+w4+..... As we know that 1+w+w2=0 then, S=1+w+w2+w(1+w+w2)+w2(1+w+w2)+... S=0+w×0+w2×0+w3×0+.... S=0+0+0+0+0+... S=0 Hence final answer is zero. |
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