三个数0.76,60.7,log0.76的大小关系为A.0.76<log0.76<60.7B.0.76<60.7<log0.76C.log0.76<60.7<0.76

发布时间:2020-07-31 13:43:48

三个数0.76,60.7,log0.76的大小关系为A.0.76<log0.76<60.7B.0.76<60.7<log0.76C.log0.76<60.7<0.76D.log0.76<0.76<60.7

网友回答

D
解析分析:由对数函数的图象和性质,可得到log0.76<0,再指数函数的图象和性质,可得0.76<1,60.7>1从而得到结论.

解答:由对数函数y=log0.7x的图象和性质可知:log0.76<0由指数函数y=0.7x,y=6x的图象和性质可知0.76<1,60.7>1∴log0.76<0.76<60.7故选D

点评:本题主要考查指数函数,对数函数的图象和性质,在比较大小中往往转化为函数的单调性或图象分面来解决.
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