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Toán Lớp 8: với a,b,c>0.a^2c+b^2a+c^2b-3abc>0.cm a^2/b^2+b^2/c^2+c^2/b^2 >= a/b+b/c+c/a

Home/ Toán Lớp 8: với a,b,c>0.a^2c+b^2a+c^2b-3abc>0.cm a^2/b^2+b^2/c^2+c^2/b^2 >= a/b+b/c+c/a

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