1 . 设等差数列
的前n项和是
,若
(![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae55952e90bddabd1205eeb66437c7a.png)
,且
),则必定有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a45e9b0fa7b0628f12310a1eb414b0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aae55952e90bddabd1205eeb66437c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b716412d76a0de038192d31e45dc23a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72ac49ab7c8001c209b8611b9ea40d85.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5卷引用:人教B版(2019) 选修第三册 一蹴而就 高考模拟测试卷
人教B版(2019) 选修第三册 一蹴而就 高考模拟测试卷湖北省武汉市部分重点中学2021-2022学年高二下学期3月联考数学试题(已下线)第一章 数列(单元综合检测卷) -2023-2024学年高二数学同步精品课堂(北师大版2019选择性必修第二册)山东省实验中学2022-2023学年高二上学期12月月考数学试题贵州省黔西南州兴义市顶效开发区顶兴学校2022-2023学年高二下学期第三次月考数学试题
2 . 设数列
的前
项和为
,且
,
.
(1)求
的通项公式;
(2)设
,若对所有的
,都有
,求实数
的取值范围.
![](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/b13a6e1d671215fc96e4bee3541d1096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b879217db06a5dc2b1c45a37e6dfaaa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937a185bb2679b862bd5101f5b5c3be4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f093c61867ee4ce75f951d46b9b123.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d136863d6beae5098ba2150334ddf235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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4卷引用:人教B版(2019) 选修第三册 一蹴而就 高考模拟测试卷
人教B版(2019) 选修第三册 一蹴而就 高考模拟测试卷苏教版(2019) 选修第一册 必杀技 第四章 第4.3节综合训练人教B版(2019) 选修第三册 必杀技 第五章 第5.3节综合训练(已下线)第4章 数列单元检测卷-2021-2022学年高二数学尖子生同步培优题典(苏教版2019选择性必修第一册)
3 . 若数列
满足
,
,
,记数列
的前
项积为
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a83e10641b61ff3ebb66fc52ffe557.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/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4 . 已知
,对任意正整数
,
中,①
;②
,
,
;
;③设数列
的前
项和为
,
,从这三个条件中任选一个,补在下面问题中,并作答:在数列
中,______,若
,求数列
的前
项和
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f0ee1aedae9d154c11d2efec3b9d3f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9b6e51986fe5d7a7265e0e93adcb4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a944b098ef333ce64fd476ab2046b7e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e6e8340a691b540f1322c0aaa87d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.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/225c8b48dfea2c39ac29d31b2d250edd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4a67138f29758d025473086601cef0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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2020-11-29更新
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名校
解题方法
5 . 各项均为正偶数的数列
,
,
,
中,前三项依次成公差为
的等差数列,后三项依次成公比为
的等比数列.
(1)若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
________
(2)若
,则
的所有可能的值构成的集合为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daf464629fa321a6ff7401ab79f07083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe9369621149328a9e5629bc5314604.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fc336b4a83bf6d66c4afcc431597f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4df69c82851296616f412c3cff964bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c98c59cd4749afdd21e73529fc84323.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3da8121ac43a8b1eefc2e7368675c5ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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2020-10-23更新
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2卷引用:人教B版(2019) 选修第三册 一蹴而就 高考模拟测试卷
名校
6 . 已知数列
,
的通项公式分别为
,
,由这两个数列的公共项按从小到大的顺序组成一个新的数列
,则数列
的各项之和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06ccd55c4a65e330bda62e541d3f6037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d917075babceec9e3ac7be621120c7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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人教B版(2019) 选修第三册 一蹴而就 高考模拟测试卷(已下线)2019年9月12日 《每日一题》必修5—— 等差数列的前n项和(1)【全国百强校】安徽省黄山市屯溪第一中学2018-2019学年高一下学期期中考试数学试题
名校
7 . 等比数列
满足
,
,
,则数列
的前10项和是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b718899b789e5a10fd663acc2544de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48386e712c13015795b5be174ec6187f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f6000421c5370e4b89f23be199f388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
A.-35 | B.-25 | C.25 | D.35 |
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|
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8 . 数列2,22,222,2222,的一个通项公式an是( )
A.![]() | B.![]() | C.![]() | D.![]() |
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9 . 数列
的通项为
,前
项和为
,则
=__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d8e64574155b1c994a87672e3af4ec7.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/08c9965a04c2a6de04e949a15762f372.png)
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10 . 中国明代商人程大位对文学和数学也颇感兴趣,他于60岁时完成杰作
直指算法统宗
,这是一本风行东亚的数学名著,该书第五卷有问题云:“今有白米一百八十石,令三人从上及和减率分之,只云甲多丙米三十六石,问:各该若干?”翻译成现代文就是:“今有百米一百八十石,甲乙丙三个人来分,他们分得的米数构成等差数列,只知道甲比丙多分三十六石,那么三人各分得多少米?”请你计算甲应该分得
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d940f671bda7e5682583f996599e37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d6117d3266ecb6784bcc6f7c77fd63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.78石 | B.76石 | C.75石 | D.74石 |
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