如图已知f(x)=(√x+√2)^2(x>=0),又数列{an}(an>0)中a1=2,这个数列的前N项和sn(n属于N+)对所有大于1的自然数n都有Sn=f(S(n-1)角标)(1)求{√S}为等差数列(2)求数列{an}的通
来源:学生作业帮助网 编辑:作业帮 时间:2024/08/10 10:40:07
![如图已知f(x)=(√x+√2)^2(x>=0),又数列{an}(an>0)中a1=2,这个数列的前N项和sn(n属于N+)对所有大于1的自然数n都有Sn=f(S(n-1)角标)(1)求{√S}为等差数列(2)求数列{an}的通](/uploads/image/z/13344721-25-1.jpg?t=%E5%A6%82%E5%9B%BE%E5%B7%B2%E7%9F%A5f%EF%BC%88x%EF%BC%89%3D%EF%BC%88%E2%88%9Ax%2B%E2%88%9A2%EF%BC%89%5E2%EF%BC%88x%26gt%3B%3D0%EF%BC%89%EF%BC%8C%E5%8F%88%E6%95%B0%E5%88%97%7Ban%7D%EF%BC%88an%26gt%3B0%EF%BC%89%E4%B8%ADa1%3D2%EF%BC%8C%E8%BF%99%E4%B8%AA%E6%95%B0%E5%88%97%E7%9A%84%E5%89%8DN%E9%A1%B9%E5%92%8Csn%EF%BC%88n%E5%B1%9E%E4%BA%8EN%2B%EF%BC%89%E5%AF%B9%E6%89%80%E6%9C%89%E5%A4%A7%E4%BA%8E1%E7%9A%84%E8%87%AA%E7%84%B6%E6%95%B0n%E9%83%BD%E6%9C%89Sn%3Df%EF%BC%88S%EF%BC%88n-1%EF%BC%89%E8%A7%92%E6%A0%87%EF%BC%89%EF%BC%881%EF%BC%89%E6%B1%82%7B%E2%88%9AS%7D%E4%B8%BA%E7%AD%89%E5%B7%AE%E6%95%B0%E5%88%97%EF%BC%882%EF%BC%89%E6%B1%82%E6%95%B0%E5%88%97%7Ban%7D%E7%9A%84%E9%80%9A)
xSOPW]7]yg^hܵ+J7DB.n"3L?Hh"R1xڿ-CL{w{Sq[Ư֎ٞ]U`a5g` petMa5j?ak} "t-)Po85q>F4o1GnVq+Wp6S@҆Bԥgᾭj,b9w]U'Qf%Tf9+?Z=u#laJ+w[I{n_:"n=u_ D'tK姧(2Me(~6C9*CRxasR3(=4(PynYv`YOTY8)
Z\UMq2HG"ެ&I$%ؤY](
`;EQ"Z}-