已知数列{an}中a1=1,点(an,an+1)在函数y=3x+2的图象上(n∈ 发布时间:2017-04-30 21:16 │ 来源:www.tikuol.com 题型:解答题 问题: 已知数列{an}中a1=1,点(an,an+1)在函数y=3x+2的图象上(n∈N*).(I)证明:数列{an+1}是等比数列;(Ⅱ)求数列{an}的前n项和.
题型:解答题 East of the mountain________two towns,________my hometown.[ ]A.lie;one of which is B.lies;where liesC.lies;one of which is D.lie;that is 查看答案