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If a  + b + c = 0, where $a \neq b \neq c$, then what is the value of:

$\frac{a^{2}}{2a^{2}+bc}+\frac{b^2}{2b^{2}+ac}+\frac{c^{2}}{2c^{2}+ab}$

  1. zero
  2. 1
  3. -1
  4. abc
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