2003高三·山东·竞赛
1 . 设等差数列的前四项的和为26,后四项的和为110,这个数列的所有各项的和为187,那么,这个数列的项数是.
A.11 | B.22 | C.8 | D.16 |
您最近一年使用:0次
2 . 若
、
、
均为正整数,且
,
为一素数,
、
、
的
进制表示分别为
,其中,
.证明:
(1)若
,且对整数
均有
,则
,其中,
表示不超过实数
的最大整数.
(2)
,其中,
表示集合A中元素的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e36f9efed1e6ab40fe4b830e555a2be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a318d2e9ade7cfbfd929ec50b1dfa94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bd3d21fee7bcd8f08f7974449ff03dd.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de0a2f5e1c043adb4a4c84f47af96c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7600d2cfbdc6146db96cc545706004f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d26f6dbd8c3d346eb89e4747db96de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e3106344628f582fea0659d725a4e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff096c9e4a1b6bd5954bb1817a459df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d983b63ac9f95cdd7522ccfa0df2b227.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77863474e93f929327947fcd92b81b32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40d07f02828d765019b7261f51a292f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e7a004c11fab7cab3bb889d88cb5e51.png)
您最近一年使用:0次
3 . 已知数列
满足
,其中,
为数列
的前
项和.
(1)试求数列
的通项公式;
(2)设
,数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37760fcca9a72cb7ebc7f8182f1a8bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(1)试求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b13490670b3c890af7aba3fa03ed3210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf32e62d35d88a94b140221500218bea.png)
您最近一年使用:0次
4 . 给定正整数
,等差数列
满足
.证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eebb644acf1cbd0adf01af9b93c1b0f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790aabc9ffa4fef9b74cdb8733a1813a.png)
您最近一年使用:0次
2012高三·山东·竞赛
5 . 在等差数列
中,已知
,
,
.则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a6d64b8b1dc2d062692c5a952d29be.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15ddcbb67c6cd6e20e26d49ccf6e99c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694341af5caaeb6baaf3774a07763df9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a57f611027ef52b52919a5ee19576ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32a6d64b8b1dc2d062692c5a952d29be.png)
您最近一年使用:0次
6 . 已知数列
满足
.证明:在
中,最少可以找到672个无理数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086e9b14c35ef3c57b20f5e952ebf9c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8d0c862d8faaea48bc4d9886fc04fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c0eb468c307522a61c54381dd37be7f.png)
您最近一年使用:0次
7 . 已知数列
满足
.
(1)证明:当n≥2时,
;
(2)当n≥4时,求
表示不超过实数x的最大整数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c0449dd294ede7811635ebd98595c21.png)
(1)证明:当n≥2时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/986cb57bb3477c4c9dc1518b1d4b77d3.png)
(2)当n≥4时,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38cf77cceeea84669232fd3981f5529a.png)
您最近一年使用:0次
8 . 将正整数数列
中的所有完全平方数去掉后,按原顺序构成数列
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ebf5fca7fb593fee014e1fda7a2924.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff7582240e106c06c21ead539bd4ec30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ebf5fca7fb593fee014e1fda7a2924.png)
您最近一年使用:0次
9 . 已知数列
满足
,其中,
,且
问:k为何值时,对任意的
,
均为整数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f48baadf8226fe874d2d4217c9d422a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/946f3c2d2e918dd27d86bcb992a71ea9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c09fec058e33bff9c04820f0667e557c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da544d83274e3f0cc504ced970f67af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c61f2fdede7352585a3216542468a855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfccafa83afe5ee21eab6ef2b2c8852.png)
您最近一年使用:0次