问题
选择题
已知a=5log23.4,b=5log43.6,c=log30.3,则( )
A.a>b>c
B.b>a>c
C.a>c>b
D.c>a>b
答案
∵c=log30.3<log31=0<b=5log43.6=5log2
<5log23.4=a,3.6
∴c<b<a.
故选A.
已知a=5log23.4,b=5log43.6,c=log30.3,则( )
A.a>b>c
B.b>a>c
C.a>c>b
D.c>a>b
∵c=log30.3<log31=0<b=5log43.6=5log2
<5log23.4=a,3.6
∴c<b<a.
故选A.