设f(x)=log3(x+6)的反函数为f-1(x),若〔f-1(m)+6〕〔f 发布时间:2017-04-24 13:40 │ 来源:www.tikuol.com 题型:填空题 问题: 设f(x)=log3(x+6)的反函数为f-1(x),若〔f-1(m)+6〕〔f-1(n)+6〕=27,则f(m+n)=______.
题型:填空题 —He has been working________.—No wonder he looks very tired now. [ ]A. sooner or later B. day and nightC. now and then D. here and there 查看答案