27y的知识精选

已知x+3y-2=0,则3x+27y+1的最小值是(  )A.3                       ...
问题详情:已知x+3y-2=0,则3x+27y+1的最小值是()A.3                                                     B.1+2C.6                         ...
点(x,y)在直线x+3y-2=0上移动时,z=3x+27y+3的最小值为(  )A.     B.3+2  ...
问题详情:点(x,y)在直线x+3y-2=0上移动时,z=3x+27y+3的最小值为()A.     B.3+2     C.6      D.9【回答】D知识点:基本初等函数I题型:选择题...
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