已知等差数列
为递增数列,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea67505c0d99092c7dbdb22acac99c46.png)
(1)求
的通项公式;
(2)若数列
满足
,求
的前
项和
:
(3)若数列
满足
,求
的前
项和的最大值、最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea67505c0d99092c7dbdb22acac99c46.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e35b6e874e4eecad39c9cf469fa72b0.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)
(3)若数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/395fe54f4c15b5c55c3c77f75086c65b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
21-22高二下·河北石家庄·期末 查看更多[3]
河北省石家庄市第二中学教育集团2021-2022学年高二下学期期末数学试题(已下线)拓展四:数列大题专项训练(35道) -【帮课堂】2022-2023学年高二数学同步精品讲义(人教A版2019选择性必修第二册)黑龙江省双鸭山市第一中学2023-2024学年高三上学期10月月考数学试题
更新时间:2022-07-21 15:40:17
|
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).
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(2)若数列
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且
,
(
),记
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,试求所有的正整数
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(1)求
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【推荐2】已知数列
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
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【推荐1】设
,且
有唯一解,
,
(
).
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(3)若
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(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe2d729ef7c6c9142a1f63c927c2b20.png)
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【推荐2】设数列
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(1)求数列
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)记
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解答题-问答题
|
较难
(0.4)
名校
【推荐1】已知
是公差不为零的等差数列,
是等比数列,且
,
,
.
(1)求数列
,
的通项公式;
(2)记
.
(i)求数列
的前
项和
;
(ii)记
,求数列
的前
项和
.
![](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/255b47d374defa83d1d12d17fcd9ad6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bc060fadc7f4086283f4c732bc30d92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/630a87fbb29dfb1190c6915fc1cf612d.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c168660f0a068a6f5e72b503066aed5.png)
(i)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ef6d44448092ebdb9e4a49d866a749.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b9a0d7150fb24be3e28ef7f0e18be93.png)
(ii)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/470382ebb75c789e5bc1b8afd124540d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b783cf91e34e692ce8e171f0965cb53f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
您最近一年使用:0次
【推荐2】已知等比数列
的前
项和为
.
(1)求数列
的通项公式;
(2)在
与
之间插入
个数,使这
个数组成一个等差数列,记插入的这
个数之和为
,若不等式
对一切
恒成立,求实数
的取值范围;
(3)记
,求证:
.
![](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/1168d2aad5a83ff82fe1586d83fd5912.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/090426eb29836bc30c006b3739c08057.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e64104ebae89fc8255d0a8c9b020ed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763518e6b8d23a5b45bbf2098f22ac9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a63bc5746305a8fbeaf5beb21f00efe4.png)
您最近一年使用:0次