A:6
B:7
C:8
D:10
I don't like_____.
下列句子中,加横线词语的解释不正确的一项是( )
(Ⅰ)求数列{an}的通项公式;
(Ⅱ)设anbn= 3nn2+n ,求数列{bn}的前n项和为Tn.
— Please your favorite one.