设数列〔an〕满足a1=1,a2=5/3(3分之5),an+2=5/3an+1-2/3an,(n属于N※).(1)令bn=an+1-an,(n属于N※),求数列(bn)的通项公式.(2)求数列{nan}的前n项和Sn
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/27 10:06:15
![设数列〔an〕满足a1=1,a2=5/3(3分之5),an+2=5/3an+1-2/3an,(n属于N※).(1)令bn=an+1-an,(n属于N※),求数列(bn)的通项公式.(2)求数列{nan}的前n项和Sn](/uploads/image/z/1765603-19-3.jpg?t=%E8%AE%BE%E6%95%B0%E5%88%97%E3%80%94an%E3%80%95%E6%BB%A1%E8%B6%B3a1%3D1%2Ca2%3D5%2F3%283%E5%88%86%E4%B9%8B5%EF%BC%89%2Can%2B2%3D5%2F3an%2B1%EF%BC%8D2%2F3an%2C%28n%E5%B1%9E%E4%BA%8EN%E2%80%BB%EF%BC%89.%EF%BC%881%EF%BC%89%E4%BB%A4bn%3Dan%2B1%EF%BC%8Dan%2C%28n%E5%B1%9E%E4%BA%8EN%E2%80%BB%EF%BC%89%2C%E6%B1%82%E6%95%B0%E5%88%97%EF%BC%88bn%EF%BC%89%E7%9A%84%E9%80%9A%E9%A1%B9%E5%85%AC%E5%BC%8F.%EF%BC%882%EF%BC%89%E6%B1%82%E6%95%B0%E5%88%97%7Bnan%7D%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8CSn)
xSn@Y:r*)ٱa.0`ERJRJiiC̓/gOBv!˒{gf|&>94K_\1.q6KXi8ۘOKu לODep?ҝ =(MZJIk{?e! /y"XP6_ل;1? "{wbh?x `/ci<`