已知函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3956bb4fdbd90257825e0c4756db74ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe0ae57e4ce43b7101a9eeec873ef041.png)
A.5100 | B.5150 | C.5200 | D.5250 |
21-22高三上·江苏常州·期中 查看更多[3]
江苏省常州市2021-2022学年高三上学期期中数学试题(已下线)专题04 数列(突破训练)-备战2022年高考数学二轮复习重难考点专项突破训练(全国通用)江西省丰城中学2023届高三(尖子班、重点班)上学期数学(文)期中复习试题
更新时间:2021-12-04 14:46:02
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【推荐1】下列函数中是奇函数且最小正周期为
的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】已知定义在正整数集上的函数
和
,则当
,
时,
图象在
图象上方的点的个数为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1308d696fc52adb30eb3538d1a0ef29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2463c7d9191a4c4a466f6ba45217e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3038d4728f959a8efedc2592e4a4b5fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38e580d2322f7ee146f152ae1f5d0aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
A.505 | B.504 | C.1010 | D.1009 |
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【推荐1】设数列{an},{bn}都是等差数列,且a1=25,b1=75,a2+b2=100,那么数列{an+bn}的第37项为( )
A.0 | B.37 |
C.100 | D.-37 |
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【推荐2】数列
满足
(
,
),
,其前n项和为
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb5cebaef002026b7d4066f216d9e6c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15a70b95c53fb6655721e2a8c61f5c2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0704f453b2de48d36911f7db496bbf82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d48227773f59e8b822192eee4984aada.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f3cb8d72bb2e281b943b3b430138ef7.png)
A.47 | B.46 | C.45 | D.44 |
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【推荐1】等差数列
中,如果存在正整数
和
,使得前
项和
,前
项和
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51b5fe51973b3c5f8eae39039a7dc24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/807fdaf9c852e37ff4acc70d582f1ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fdfd44f354c93840edb9edb369ac95.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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【推荐2】已知
为等差数列,
,则
的前9项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3827b6f2d2357c961a0896304f8aa487.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc4e70b360f988fdbd92300ab22c4613.png)
A.9 | B.17 | C.72 | D.81 |
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【推荐1】杨辉是南宋杰出的数学家,他曾担任过南宋地方行政官员,为政清廉,足迹遍及苏杭一带.杨辉一生留下了大量的著述,他给出了著名的三角垛公式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b46bb2d852e1e41af14ff99a3b3837d6.png)
.若正项数列
的前
项和为
,且满足
,数列
的通项公式为
,则根据三角垛公式,可得数列
的前20项和
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b46bb2d852e1e41af14ff99a3b3837d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89cbbeb529d0d2ea99ccf57b12361f4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9359a8b69e130ae7c2be86f6df032e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
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A.2620 | B.2660 | C.2870 | D.2980 |
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【推荐2】已知
是
上的奇函数,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcde86af8be7c2ad1547f717fc70d9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af60b66747af568b90f61ee9707a9ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a39993ca4f85f2a0aec08c923be58b6e.png)
,则数列
的通项公式为 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/424420744e72dfbfab9876cb8ac14e91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbcde86af8be7c2ad1547f717fc70d9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af60b66747af568b90f61ee9707a9ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a39993ca4f85f2a0aec08c923be58b6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fc82353331abee0828dee9b38c08f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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