有關2aln2a的精選大全

若函數f(x)=2x+lnx,且f′(a)=0,則2aln2a=(  )A.1                ...
問題詳情:若函數f(x)=2x+lnx,且f′(a)=0,則2aln2a=()A.1                                                           B.-1C.-ln2                ...
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