Question

已知log0.72m＜log0.7(m-1)，则m的取值范围是

1. A.
   {m|m＞1}
2. B.
   {m|0＜m＜1}
3. C.
   {m|m＞0}
4. D.
   {m|m＞-1}

Answer 1

A
由题意得2m＞m-1＞0，解得m＞1．