已知数列an的前n项和为Sn,并且满足a1=2,n*an+1=Sn+n(n+1).(1)求an的通项公式.2,令Tn=Sn/2^n问,当n为何正整数值,Tn>T(n+1).二问,若对一切正整数,总有Tn小于等于m,求m的取值范围.注n*(an+1),1是单另常
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![已知数列an的前n项和为Sn,并且满足a1=2,n*an+1=Sn+n(n+1).(1)求an的通项公式.2,令Tn=Sn/2^n问,当n为何正整数值,Tn>T(n+1).二问,若对一切正整数,总有Tn小于等于m,求m的取值范围.注n*(an+1),1是单另常](/uploads/image/z/1782781-61-1.jpg?t=%E5%B7%B2%E7%9F%A5%E6%95%B0%E5%88%97an%E7%9A%84%E5%89%8Dn%E9%A1%B9%E5%92%8C%E4%B8%BASn%2C%E5%B9%B6%E4%B8%94%E6%BB%A1%E8%B6%B3a1%3D2%2Cn%2Aan%2B1%3DSn%2Bn%28n%2B1%29.%281%29%E6%B1%82an%E7%9A%84%E9%80%9A%E9%A1%B9%E5%85%AC%E5%BC%8F.2%2C%E4%BB%A4Tn%3DSn%2F2%5En%E9%97%AE%2C%E5%BD%93n%E4%B8%BA%E4%BD%95%E6%AD%A3%E6%95%B4%E6%95%B0%E5%80%BC%2CTn%3ET%EF%BC%88n%2B1%EF%BC%89.%E4%BA%8C%E9%97%AE%2C%E8%8B%A5%E5%AF%B9%E4%B8%80%E5%88%87%E6%AD%A3%E6%95%B4%E6%95%B0%2C%E6%80%BB%E6%9C%89Tn%E5%B0%8F%E4%BA%8E%E7%AD%89%E4%BA%8Em%2C%E6%B1%82m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.%E6%B3%A8n%2A%EF%BC%88an%2B1%EF%BC%89%EF%BC%8C1%E6%98%AF%E5%8D%95%E5%8F%A6%E5%B8%B8)
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已知数列an的前n项和为Sn,并且满足a1=2,n*an+1=Sn+n(n+1).(1)求an的通项公式.2,令Tn=Sn/2^n问,当n为何正整数值,Tn>T(n+1).二问,若对一切正整数,总有Tn小于等于m,求m的取值范围.注n*(an+1),1是单另常
已知数列an的前n项和为Sn,并且满足a1=2,n*an+1=Sn+n(n+1).(1)求an的通项公式.2,令Tn=Sn/2^n问,
当n为何正整数值,Tn>T(n+1).二问,若对一切正整数,总有Tn小于等于m,求m的取值范围.
注n*(an+1),1是单另常数
已知数列an的前n项和为Sn,并且满足a1=2,n*an+1=Sn+n(n+1).(1)求an的通项公式.2,令Tn=Sn/2^n问,当n为何正整数值,Tn>T(n+1).二问,若对一切正整数,总有Tn小于等于m,求m的取值范围.注n*(an+1),1是单另常
n*an+1和Sn/2^n有歧义.