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National and Regional Contests
Canada Contests
Canada National Olympiad
1996 Canada National Olympiad
1
Roots of third degree equation
Roots of third degree equation
Source: Canada 1996
March 4, 2006
algebra
polynomial
Vieta
algebra unsolved
Problem Statement
If
α
\alpha
α
,
β
\beta
β
, and
γ
\gamma
γ
are the roots of
x
3
−
x
−
1
=
0
x^3 - x - 1 = 0
x
3
−
x
−
1
=
0
, compute
1
+
α
1
−
α
+
1
+
β
1
−
β
+
1
+
γ
1
−
γ
\frac{1+\alpha}{1-\alpha} + \frac{1+\beta}{1-\beta} + \frac{1+\gamma}{1-\gamma}
1
−
α
1
+
α
+
1
−
β
1
+
β
+
1
−
γ
1
+
γ
.
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