計(jì)算:

(1)對(duì)數(shù)函數(shù)對(duì)應(yīng)于x1,3,9時(shí)的函數(shù)值;

(2)常用對(duì)數(shù)函數(shù)對(duì)應(yīng)于x0.01,0.001,1 000時(shí)的函數(shù)值.

答案:略
解析:

(1),,

(2),,


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