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Let ω is an imaginary cube roots of unity then the value of 2(ω+1)(ω2+1)+3(2ω+1)(2ω2+1)+........+(n+1)(nω+1)(nω2+1)is |
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Answer» Let ω is an imaginary cube roots of unity then the value of 2(ω+1)(ω2+1)+3(2ω+1)(2ω2+1)+........+(n+1)(nω+1)(nω2+1)is |
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