October 2018 1 92 Report

1.udowodnij nierownosc:a) a/3+3/a>(wieksze badz rowne)2 gdy a>o b)a/b+b/a>(badz rowne)2,gdy a,b>o c)a^2/2b+4b^2/a>(badz rowne)a+2b,gdy a,b >0 d)a^3+b^3>(badz rowne)a^2b+ab^2gdy a,b>0 e)(a+b)(1/a+1/b)>(badz rowne)4 f)a^3+b^3>(badz rowme)1/4(a+b)^3,gdy a,b>0 g)a^2/a^4+1(badz rowne)a^3b+ab^3


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