数列{an}满足a(n+1)=2an,(0≤an≤1/2),2a(n-1),(1/2≤an
1个回答
这个就是利用递推式找规律
你的输入有误,不是2a(n-1),应该是2an -1
a1=3/5
∵ 1/2≤3/5
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