问题
选择题
设a=log34,b=log0.43,c=0.43,则a,b,c的大小关系为( )
A.a>c>b
B.c>a>b
C.b>c>a
D.c>b>a
答案
∵a=log34>log33=1,
b=log0.43<log0.41=0,
0<c=0.43<0.40=1
故a>c>b
故选A
设a=log34,b=log0.43,c=0.43,则a,b,c的大小关系为( )
A.a>c>b
B.c>a>b
C.b>c>a
D.c>b>a
∵a=log34>log33=1,
b=log0.43<log0.41=0,
0<c=0.43<0.40=1
故a>c>b
故选A