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下列函数最小值为4的是

发布时间:2021-07-21

A.y=x+http://picflow.koolearn.com/upload/papers/g02/20110827/20110827160053312881.gif

B.y=sinx+http://picflow.koolearn.com/upload/papers/g02/20110827/20110827160053328939.gif(0<x<π)

C.y=3x+4·3-x

D.y=lgx+4logx10

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