问题
选择题
以下大小关系正确的为( )
A.0.76<log0.76<60.7
B.log0.76<0.76<60.7
C.log0.76<60.7<0.76
D.0.76<60.7<log0.76
答案
因为log0.76<0,
0.76<0.70=1,
60.7>60=1,
且0.76>0,60.7>0.
所以log0.76<0.76<60.7.
故选B.
以下大小关系正确的为( )
A.0.76<log0.76<60.7
B.log0.76<0.76<60.7
C.log0.76<60.7<0.76
D.0.76<60.7<log0.76
因为log0.76<0,
0.76<0.70=1,
60.7>60=1,
且0.76>0,60.7>0.
所以log0.76<0.76<60.7.
故选B.