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If`alpha,betaandgamma` are the roots of `X^(3)-3X^(2)+3X+7+0,` find the value of `(alpha =1)/(beta-1)+(beta-1)/(gamma-1)+(gamma-1)/(alpha-1).`

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AAKASH INSTITUTE ENGLISH-COMPLEX NUMBERS AND QUADRATIC EQUATIONS-section-I (Subjective Type Questions)
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