[問題] 一題極限求解
設數列a(n)滿足a(1)=2, a(n+1)=√(6+a(n)),
(1) 試證a(n)為遞增數列
(2) 試證a(n)有上界
(3) 試說明數列a(n)的極限值存在,並求
lim n->∞ a(n)
a(n)求不出一般項 我完全沒有頭緒啊
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※ 編輯: Lin25K (210.71.78.244), 02/18/2017 17:20:38
※ 編輯: Lin25K (210.71.78.244), 02/18/2017 17:21:21
※ 編輯: Lin25K (210.71.78.244), 02/18/2017 17:22:22
推
02/18 17:26, , 1F
02/18 17:26, 1F
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02/18 17:27, , 2F
02/18 17:27, 2F
推
02/18 17:28, , 3F
02/18 17:28, 3F
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02/18 17:29, , 4F
02/18 17:29, 4F
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02/18 17:30, , 5F
02/18 17:30, 5F
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02/18 17:32, , 6F
02/18 17:32, 6F
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02/18 17:33, , 7F
02/18 17:33, 7F
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02/18 17:35, , 8F
02/18 17:35, 8F
→
02/18 17:35, , 9F
02/18 17:35, 9F
推
02/18 17:37, , 10F
02/18 17:37, 10F
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02/18 17:38, , 11F
02/18 17:38, 11F
推
02/18 19:22, , 12F
02/18 19:22, 12F
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02/18 19:48, , 13F
02/18 19:48, 13F
推
02/18 22:17, , 14F
02/18 22:17, 14F