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Kayasari Ryuunosuke Coordinator

21/07/2017 at 21:50
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With a,b,c are positive real numbers so that a + b + c = 1 .

Find MaxS know :

\(S=6\left(ab+bc+ca\right)+a\left(a-b\right)^2+b\left(b-c\right)^2+c\left(c-a\right)^2\)




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    Nguyễn Huy Thắng 21/07/2017 at 23:39

    sourceCâu hỏi của Nguyễn Thiều Công Thành - Toán lớp 9 - Học toán với OnlineMath


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