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设数列{an}满足:a1=1,a2=2,N*).(1)求an+1与an之间的递推关系式an...
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设数列{a
n}满足:a
1=1,a
2=2,
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)
N
*).
(1)求a
n+1与a
n之间的递推关系式a
n+1=f(a
n);
(2)求证:当n≥2时,2<a
n2-a
n-12≤3;
(3)求a
2011的整数部分.
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