設等差數列{an}的前n項和爲Sn,已知(a8-1)3+2018(a8-1)=1,(a2011-1)3+201...
問題詳情:設等差數列{an}的前n項和爲Sn,已知(a8-1)3+2018(a8-1)=1,(a2011-1)3+2018(a2011-1)=-1,則下列結論正確的是( )A.S2018=2018,a2011>a8 B.S2018=2018,a2011<a8 C.S2018=-2018,a2011≤a8 D.S2018=-2018...
問題詳情:設等差數列{an}的前n項和爲Sn,已知(a8-1)3+2018(a8-1)=1,(a2011-1)3+2018(a2011-1)=-1,則下列結論正確的是( )A.S2018=2018,a2011>a8 B.S2018=2018,a2011<a8 C.S2018=-2018,a2011≤a8 D.S2018=-2018...