已知等比数列{an}的前n项和Sn=2n-1,则a12+a22+…an2=___ 发布时间:2017-05-03 19:58 │ 来源:www.tikuol.com 题型:填空题 问题: 已知等比数列{an}的前n项和Sn=2n-1,则a12+a22+…an2=______.
题型:填空题 It is too bad for someone in such a high _______ in the government to behave badly in public. A.positionB.situationC.professionD.condition 查看答案