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Question Number 61700 by aliesam last updated on 06/Jun/19
Answered by tanmay last updated on 06/Jun/19
a=−b−ca2=−ab−ac−ab−ac−ab−bc−ac+−ab−bc−ab−bc−ca+−ac−bc−ac−bc−ab=−2(ab+bc+ac)−(ab+bc+ac)=2
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