摘要：人教B版高中数学选修4-5“不等式选讲”第49页第7题:已知x,y,z为正实数,求证(Nesbitt不等式):xy+z+yz+x+zx+y≥32.这个不等式形式优美,内涵极其丰富,由此可以演绎出一系列的不等式,可谓花团锦簇、精彩纷呈.
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