# Don't Guess, Solve it!

Algebra Level 3

If $$a, b, c$$ are the sides of a triangle, then find the minimum value of the expression $\frac { a }{ c+a-b } +\frac { b }{ a+b-c } +\frac { c }{ b+c-a } .$

(This question is a modification of the one that appeared in RMO 1999)

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