计算:1/a + 1/b + 1/c,c/ab + a/bc + b/ca

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计算:1/a + 1/b + 1/c,c/ab + a/bc + b/ca
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计算:1/a + 1/b + 1/c,c/ab + a/bc + b/ca
计算:1/a + 1/b + 1/c,c/ab + a/bc + b/ca

计算:1/a + 1/b + 1/c,c/ab + a/bc + b/ca
1/a + 1/b + 1/c=(a+b+c)/abc
c/ab + a/bc + b/ca=(a^2+b^2+c^2)abc

题目就这么完啦?