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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/3 N-1 B)N-1/3 N-1


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 


Grade:11

1 Answers

A.S. Rajavel
4 Points
9 years ago

sum of roots is zero.

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

1/3(0)=0

0+0=0

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