名校
1 . 已知不等式
的解集为
,则
的值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2880c261c26fa0f0cb66d11a966c515.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cceff0e7d103475c3ba9a2712f373185.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22695172d34f825fda22cd68d887845.png)
A.3 | B.4 | C.5 | D.6 |
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解题方法
2 . 记
为数列
的前n项和,已知
,
.
(1)求
,
;
(2)求数列
的通项公式.
![](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/3b6a46c5fb744758ad83902819b83bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ef79e4ffeec9b3233cf3d1913496530.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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2022-11-23更新
|
1840次组卷
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4卷引用:江苏省常州市北郊高级中学2022-2023学年高二上学期期中数学试题
江苏省常州市北郊高级中学2022-2023学年高二上学期期中数学试题(已下线)专题12 数列大题专项训练(已下线)第四章 数列(A卷·知识通关练) (2)黑龙江省七台河市勃利县高级中学2022-2023学年高二上学期期末考试数学试题
3 . 设
,不等式
的解集是
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5a94417d0d62715ea4067280d733df.png)
__________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d90e1dc4714287648d0bebcac913ded7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f37ce56ded096e373f154ea74f03eb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28c489266e23220f38199171e6786121.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5a94417d0d62715ea4067280d733df.png)
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解题方法
4 . (1)当
且
时,求函数
的最小值.
(2)当
时,求函数
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9122213db0bcfbaf4e7967840aea26dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08677c8308807e4dca6fd9410d301a39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf99adccc80f28343fedd8d0aad7429.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b22858c4e520e09d851578f75e3fa681.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc1a19da3fb8bf0696fee5082d3e87c2.png)
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2022-11-22更新
|
1135次组卷
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2卷引用:江苏省淮安市涟水县第一中学2022-2023学年高一上学期第二次阶段检测数学试题
5 . 解不等式:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b051e1329de07b78b173b7980ea8ea.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0b051e1329de07b78b173b7980ea8ea.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b576ff052b4942c69a28044eb83b0a3d.png)
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6 . 在等差数列
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7574e3628c8acba33db4895606f468.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1b53ad0035d00374e2e2f895edc6153.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f7574e3628c8acba33db4895606f468.png)
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解题方法
7 . 等差数列
的前
项和为
,满足:
,则
( )
![](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/2fd48e21b22f23d07c616666080a3f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a4adedeb2914234d502a896c098902.png)
A.72 | B.75 | C.60 | D.100 |
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解题方法
8 . 实数
满足
,则当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ 时,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f817ad749c59a80e4a990f3349584b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e63932882eb1c4b5e9f1c2f56e32d9f6.png)
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名校
9 . 已知数列
满足
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97da4ae437e47d72e88ecb75ce97608e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3397364f378662f9ca49c50bd59bfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047dbd9ff686703cad03aa383e5fec21.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-11-16更新
|
559次组卷
|
4卷引用:江苏省盐城市阜宁中学2022-2023学年高二上学期期中数学试题
江苏省盐城市阜宁中学2022-2023学年高二上学期期中数学试题江苏省海安市实验中学2022-2023学年高二上学期12月月考数学试题甘肃省兰州市兰州东方中学2022-2023学年高二上学期12月月考数学试题(已下线)重难点专题01 数列的概念-2022-2023学年高二数学重难点题型分类必刷题(人教B版2019选择性必修第三册)
名校
10 . 若
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a0c4c098615c6bc7e6dcf72e5b5201a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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