Problem

Problem

If α,β,γ\alpha, \beta, \gamma are the roots of x3−x2−1=0x^3 - x^2 - 1 = 0 , the value of ∑(1+α1−α)\sum \left( \frac{1+\alpha}{1-\alpha} \right) , is equal to a. -7 b. -6 c. -5 d. -4

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