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If 1,Z1,Z2,Z3,........Z(n-1) are n^(th)...

If `1,Z_1,Z_2,Z_3,........Z_(n-1)` are `n^(th)` roots of unity then the value of `1/(3-Z_1)+1/(3-Z_2)+..........+1/(3-Z_(n-1))` is equal to

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CENGAGE PUBLICATION-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-All Questions
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  3. If 1,Z1,Z2,Z3,........Z(n-1) are n^(th) roots of unity then the value...

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