(本题满分13分)
已知各项均为正数的等差数列,其前n项和S满足10S = a + 5a + 6;等比数列满足b = a,b = a,b = a;数列满足.(1)求数列的通项公式;
(2)求数列的前n项和T.
相关知识点
推荐套卷
(本题满分13分)
已知各项均为正数的等差数列,其前n项和S满足10S = a + 5a + 6;等比数列满足b = a,b = a,b = a;数列满足.(1)求数列的通项公式;
(2)求数列的前n项和T.