>
数学
>
已知log
7
[log
3
(log
2
x)]=0,那么
x
−
1
2
等于( )
A.
1
3
B.
3
6
C.
2
4
D.
3
3
人气:354 ℃ 时间:2019-08-21 23:30:44
解答
由条件知,log
3
(log
2
x)=1,
∴log
2
x=3,
∴x=8,
∴x-
1
2
=
2
4
.
故选C
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