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�� 1062. �� :�) a/b+b/c+c/a?3 (a>0, b>0, c>0);�) (a^3+b^3)/2?((a+b)/2)^3 (a>0, b>0);�) (a+b)^4?8a^4+8b^4;�) (a+2)(b+2)(a+b)?16ab (a>0, b>0);�)...

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1062. �� :

�) a/b+b/c+c/a?3 (a>0, b>0, c>0);

�) (a^3+b^3)/2?((a+b)/2)^3 (a>0, b>0);

�) (a+b)^4?8a^4+8b^4;

�) (a+2)(b+2)(a+b)?16ab (a>0, b>0);

�) ab(a+b)?a^3+b^3 (a?0, b?0);

�) a^2+b^2+c^2<2(ab+bc+ac), �� a, b � c � �� .

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