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Mathematics, 13.07.2021 04:30 sandrafina2004

A, b,c >0 a+b+c=1
Chứng minh:
(a+1/a)^2 + (b+1/b)^2 + (c+1/c)^2 > 33

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A, b,c >0 a+b+c=1
Chứng minh:
(a+1/a)^2 + (b+1/b)^2 + (c+1/c)^2 > 33...

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