關於2aln2a的百科

• 若函式f(x)＝2x＋lnx，且f′(a)＝0，則2aln2a＝(　　)A．1                ...

• 問題詳情：若函式f(x)＝2x＋lnx，且f′(a)＝0，則2aln2a＝()A．1                                                           B．－1C．－ln2                                         ...
• 2021-05-1428424