【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前...【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前n项和Tn
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![【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前...【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前n项和Tn](/uploads/image/z/14112651-3-1.jpg?t=%E3%80%90%E9%AB%98%E8%80%83%E3%80%91%E8%8B%A5%E6%95%B0%E5%88%97%7Ban%7D%E6%BB%A1%E8%B6%B3%2Ca1%3D1%2C%E4%B8%94a%28n%2B1%29%3Dan%2F%281%2Ban%29%2C%E8%AE%BE%E6%95%B0%E5%88%97%7Bbn%7D%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8C%E4%B8%BASn%2C%E4%B8%94Sn%3D2-bn%2C%E6%B1%82%7Bbn%2Fan%7D%E7%9A%84%E5%89%8D...%E3%80%90%E9%AB%98%E8%80%83%E3%80%91%E8%8B%A5%E6%95%B0%E5%88%97%7Ban%7D%E6%BB%A1%E8%B6%B3%2Ca1%3D1%2C%E4%B8%94a%28n%2B1%29%3Dan%2F%281%2Ban%29%2C%E8%AE%BE%E6%95%B0%E5%88%97%7Bbn%7D%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8C%E4%B8%BASn%2C%E4%B8%94Sn%3D2-bn%2C%E6%B1%82%7Bbn%2Fan%7D%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8CTn)
【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前...【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前n项和Tn
【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前...
【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前n项和Tn
【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前...【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前n项和Tn
1/a(n+1)=1/an+1
1/a1=1
1/an=n,
an=1/n
sn=2-bn,b1=1
sn=2-bn,s(n+1)=2-b(n+1)
b(n+1)=(1/2)*bn
bn=(1/2)^(n-1)
Tn=1+2*(1/2)^1+...+n*(1/2)^(n-1)
2Tn=2+2+...+n*(1/2)^(n-2)
Tn=4-(2+n)*(1/2)^(n-1)
【高考】若数列{an}满足,a1=1,且a(n+1)=an/1+an,证明,数列{1/an}为等差数列,并求出数列{an}的通...【高考】若数列{an}满足,a1=1,且a(n+1)=an/1+an,证明,数列{1/an}为等差数列,并求出数列{an}的通项公式
【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前...【高考】若数列{an}满足,a1=1,且a(n+1)=an/(1+an),设数列{bn}的前n项和为Sn,且Sn=2-bn,求{bn/an}的前n项和Tn
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