1 . 已知函数
,则函数
的最小的极值点为___________ ;若将
的极值点从小到大排列形成的数列记为
,则数列
的通项公式为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/776d169c9b04cb83122a99e23126ee55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2 . 数组
满足条件:
.令
,则满足不等式
的最小自然数n是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ff24032170d6596da74c7e7f75f21c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242eb1404390090ef7521da3b4838938.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b853c987690c9c31455ef35b5507fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de00d9b289758ad5a3210b1a8b14737.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8430308e88c912e488d03fc17ffd1073.png)
A.17. | B.16. | C.15. | D.14. |
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3 . 一列半径递减的圆依次互相外切,同时切于一个已知直角的两边,第一个圆的面积同这个系列的其它圆的面积和之比是( ).
A.![]() | B.![]() |
C.![]() | D.![]() |
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4 . 设数列![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9a31e7cc9d181f01b20710cd840773.png)
问:(1)这个数列第2010项的值是多少?
(2)在这个数列中,第2010个值为1的项的序号是多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9a31e7cc9d181f01b20710cd840773.png)
问:(1)这个数列第2010项的值是多少?
(2)在这个数列中,第2010个值为1的项的序号是多少?
您最近一年使用:0次
2006高三·浙江·竞赛
5 . 设
,且当n ≥2时,有
. 则数列
的通项公式
= __________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ba9c50e498453aaebc45f6e8392df4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b138dcf5e15e44234d2926f0611e5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
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6 . 已知数列
满足
,
满足
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58f03b77511b764dd3f60b53a382f9f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d474d8944c27ccc71fbae10f0317deb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f91b33d881d2a0a6b13618be4a44241e.png)
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2006高三·浙江·竞赛
7 . 设
为正整数
(十进制)的各位上的数字的平方之和,例如,
.记
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fd479a128cdf57c7b8139a54175d09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fcec7af3520884b173b29bda6c657a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bcc933539ac7f459496582500b2fecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8e53ea8025dad94d129b8059aeca0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf1ce0b69f2878dbeae8a5545811fba6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fd479a128cdf57c7b8139a54175d09.png)
A.20 | B.4 | C.42 | D.145 |
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8 . 设
为等比数列,且每项都大于1.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b9ab628089c90c024e6c5b28a2d54c.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b9ab628089c90c024e6c5b28a2d54c.png)
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9 . 设数列
满足
,
(n=1,2,…),则 ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31567b7af820808d4c0572756fb62e48.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c00b2245421df25610c685812e3564e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd2f75d8d5d4e1922c75e8b7e5966078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31567b7af820808d4c0572756fb62e48.png)
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10 . 设
,定义
.
①求
的最小值;
②在
条件下,求
的最小值;
③在
条件下,求
的最小值,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4331a24db623aa0df9938c61f8fa009.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6027ab8f832cbfc2e0bf444aeaad92be.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
②在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e866871838e4579372bd56e1ff916d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
③在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1ba17b5724a5df1bc18fedab153f94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
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