# Really tough

Algebra Level 4

$\large{\left(\dfrac {b-c}{a}+\dfrac {c-a}{b}+\dfrac {a-b}{c}\right)\left(\dfrac {a}{b-c}+\dfrac {b}{c-a}+\dfrac {c}{a-b}\right)}$

If $$a+b+c=0$$, then find the value of the expression above.

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