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Sequence divergent

HI guys please help to


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cheeers
(edited 10 years ago)
Original post by NightKings
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n=1m+12nsnn=1m2nsn=  ?\displaystyle\sum_{n=1}^{m+1} 2^n s_n-\sum_{n= 1}^{m} 2^n s_n=\cdots\to \cdots\; ?
The series converging implies 2^n*s(n) converges to zero. 2^n diverges as n tends to infinity therefore sn tends to zero as n tends to infinity.

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