CMR: (a^2+b^2)(a^2+1)$\geq$ 4a^2b
CMR: (a^2+b^2)(a^2+1)$\geq$ 4a^2b
Started By ngocloan, 23-10-2016 - 18:33
#2
Posted 23-10-2016 - 18:45
vothimyhanh
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( áp dụng BĐT Cauchy )
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