已知
,点
在函数
的图像上
,
,则数列
的前
项和![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a44042d110ad8bf676c2785c2b1f9a04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5397ee1eb6d157f6ec1e7a878f8d16e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9fc82353331abee0828dee9b38c08f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad75f8318b09f86fdd2af419e86ee291.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/04c2864e2ec3416cc4c081ac1f71a0af.png)
20-21高三上·上海闵行·阶段练习 查看更多[4]
上海市七宝中学2021届高三上学期摸底数学试题(已下线)重难点01 数列(基本通项求法)-2021年高考数学【热点·重点·难点】专练(上海专用)(已下线)专题4.1 数列的概念-2020-2021学年高二数学同步课堂帮帮帮(人教A版2019选择性必修第二册)(已下线)第四章 数列-2020-2021学年高二数学同步课堂帮帮帮(人教A版2019选择性必修第二册)
更新时间:2020-09-25 15:08:33
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名校
【推荐1】已知函数
,方程
有四个不相等的实数根
.
(1)实数m的取值范围为_____________ ;
(2)
的取值范围为______________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4cb6348d2d1cd5ec32560bcf2a29f19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb2e46f49adba6036e2624639a1b966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2d2b6f27f15d72aa4075b17a7e235c2.png)
(1)实数m的取值范围为
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c8d2cde628b9fc745ccba9dcafc0738.png)
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解题方法
【推荐2】已知函数
在
上的最大值与最小值分别为
和
,则函数
的图象的对称中心是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d095f4d6ddba9f80b5534dea87b63b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75bda9f0bd714c30af866690d5cc841f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐1】已知数列
满足
,
,设
,若数列
是单调递减数列,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1513e9df7ffb1e1fa9bb8df305c7ed0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
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【推荐2】已知数列
中,
,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f10fc9e672c15eba65a4a4c4ac8cd2.png)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d8e8f821111de8075e5c3dfb22a5d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26f10fc9e672c15eba65a4a4c4ac8cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5e07bf129b073f37b553fbca100172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3f7fda69e2b32b9ced2239f915fa59b.png)
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【推荐1】如图,正方形
的边长为1,连接
各边的中点得到正方形
,连接正方形
各边的中点得到正方形
,依此方法一直进行下去.记
为正方形
的面积,
为正方形
的面积,
为正方形
的面积,……..
为
的前
项和.给出下列四个结论:
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/6/c953b28a-410f-4e09-8ec2-bc4ac20a0ddb.png?resizew=142)
①存在常数
,使得
恒成立;②存在正整数
,当
时,
;③存在常数
,使得
恒成立;④存在正整数
,当
时,
其中所有正确结论的序号是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/611f100dcfa7803db6eb233e2e7f2dab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ccc6c74b8754e9bcbb3f39a11b6f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64a8012195f63ecbb610ba810a806103.png)
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①存在常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8ca7e3eede8f49b5aeec8f21dfe5411.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43f36a43e6b2660feaf82c88db905ede.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985dc26a89252b2e8dea815c529a2ffb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4eadb6761fe3c3c8dde8bdb1631e40e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985dc26a89252b2e8dea815c529a2ffb.png)
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【推荐2】已知数列
的前n项和为
,
,若存在两项
,
,使得
,则下列结论正确的是___________ .(填写所有正确的序号)
①数列
为等差数列;
②数列
为等比数列;
③
为定值;
④设数列
的前n项和为
,
,则数列
为等差数列.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
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①数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
②数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
③
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④设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
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【推荐1】数列
满足
,数列
满足
,数列
的前n项和为
,对任意的
,不等式![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32fa3dfa41a7ba3392a29ad08141d9a6.png)
恒成立,则实数
的取值范围为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
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【推荐2】已知数列
的各项都是正数,
,若数列
为严格增数列,则首项
的取值范围是______ ,当
时,记
,若
,则整数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd707b69a11f8de5566f23c1a2a9ff5a.png)
______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99efc15c738a1f92085ef110bda7cf99.png)
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