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IF A1,A2,A3,...,A BE N-TH ROOTS OF THE UNITY THEN THE VALUE OF (A1/3-A1+A2/3-A2+A3/3-A3+...+A/3-A)=

A)N/3N-1

B)N-1/3N-1

sachin anand , 13 Years ago
Grade 11
anser 1 Answers
A.S. Rajavel

Last Activity: 13 Years ago

sum of roots is zero.

therefore -a1 -a2-a3......=0

1/3(0)=0

0+0=0

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