if a+b+c=0 then write the value of a×a÷bc+b×b÷ca+c×c+ab
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a²/bc+b²/ca+c²/ab
=(a²×a+b²×b+c²×c)/abc
=(a³+b³+c³)/abc
=3abc/abc
=3
=(a²×a+b²×b+c²×c)/abc
=(a³+b³+c³)/abc
=3abc/abc
=3
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