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UPSEE 2018 Solved Paper

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Question : 110 of 150
 
Marks: +1, -0
If α,β and γ are the roots of the equation x3−3x2+3x+7=0, and w is cube root of unity, then the value of
α−1
β−1
+
β−1
γ−1
+
γ−1
α−1
 is equal to
Validate
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