题干
已知数列{an}的前n项和Sn满足2Sn=3an﹣3，数列{bn}的前n项和Tn满足
=
+1且b1=1．
| T |
| n |
| + |
| 1 |
| n |
| + |
| 1 |
| T |
| n |
| n |
