问题
解答题
已知f（x）=lg（x+1）
（1）若0＜f（1-2x）-f（x）＜1，求x的取值范围；
（2）若g（x）是以2为周期的偶函数，且当0≤x≤1时，g（x）=f（x），求函数y=g（x）（x∈[1，2]）的反函数．
答案
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已知f（x）=lg（x+1）
（1）若0＜f（1-2x）-f（x）＜1，求x的取值范围；
（2）若g（x）是以2为周期的偶函数，且当0≤x≤1时，g（x）=f（x），求函数y=g（x）（x∈[1，2]）的反函数．
| within just lost their lives in their twenties put out |
B: Not yet. When and where did the fire happen?
A: It happened on May 1st in Shanghai.
B: Did the firemen 小题1: the fire soon?
A: Yes. The firemen reached the burning building 小题2: six minutes.
B: Was anybody hurt in the fire?
A: Two firemen 小题3: in the fire.
B: I am sorry to hear that.
A: These two firemen are very young. Both of them are 小题4: .
B: I am very sad. They are 小题5: several years older than us.
A: I have the same feeling. Fire is really terrible. Everyone should be careful with it.