Bxy1的知识精选

设x,y为正实数,且xy-(x+y)=1,则 (    )A.x+y2+2  B.xy+1      C.x+...
问题详情:设x,y为正实数,且xy-(x+y)=1,则 (    )A.x+y2+2  B.xy+1      C.x+y(+1)2   D.xy2+2【回答】A知识点:不等式题型:选择题...
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