1 . 在平面直角坐标系
中,点列
满足
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4748dcde982d277e7c74bc4df31eb6f6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dba480dfe9c03f4d22597a80db187de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06d5987886f023f3fd913d21309c7395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f96a5581bc5da9c4214cd384a45dca09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4748dcde982d277e7c74bc4df31eb6f6.png)
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2 . 在数列
中,
下列说法正确的是___________ .
①若
,则
一定是递增数列;
②若
则
一定是递增数列;
③若
,
则对任意
,都存在
,使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b37bd815de95e617040fa45fdbd6c7.png)
④若
,且存在常数
,使得对任意
,都有
则
的最大值是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50dc7d5caaa6bcb1436a6aa839bf001d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d01cb00904ee16178c7c35d7e0a8d3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/691ec1577c98b333a004eea38bc78252.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d561652db46e57667cd881a09aa0f46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf0d4a31a24673fb52fb58c40523f3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0b37bd815de95e617040fa45fdbd6c7.png)
④若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9933c60834f3b24ff2abe352282268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbfc82fe1ad8c56551ffe0b065ed11a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
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3 . 如图所示,已知
,
,
,作以
为直角顶点的等腰直角
,作点
和点
的中点
,继续作以
为直角顶点的等腰直角
,如此继续作中点,作等腰直角三角形.这样会得到一组分别以
为直角顶点的等腰直角三角形.下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b62194097ac66a5093c57fca2f5b4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a72886e68bc8c9cfae1ab4e193ae516.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9c0d07b210c6597b349f00843b5681.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4319ca7c73b6e01a17c440906c496723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309e06eb94da115b954101684e5b71c4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/6/9/dcc419ab-d686-4b1c-8fbf-5961e45e0fd2.png?resizew=362)
A.所作的等腰直角三角形的边长构成公比为![]() |
B.第4个等腰直角三角形的不在第3个等腰直角三角形边上的顶点坐标为![]() |
C.点![]() ![]() |
D.若记第![]() ![]() ![]() |
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4 . 如图所示,设正三角形
边长为
是
的中点三角形,
为
除去
后剩下三个三角形内切圆面积之和,求![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39983e06d2b44ef90b8b5881762d380.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e9a724b59c890095baa5cb73e267c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bf9f3864bd66eaf777e2768f9efef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac014a8e56460b25941958a93282fd51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c39983e06d2b44ef90b8b5881762d380.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/3/9e0e4701-a6c8-4e64-ac84-a8b639f7106c.png?resizew=179)
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2023-03-01更新
|
220次组卷
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3卷引用:安徽省定远中学2023届高三下学期4月第三次检测数学试卷
安徽省定远中学2023届高三下学期4月第三次检测数学试卷(已下线)上海高二下学期期末模拟预测卷01(高中全部内容)-【满分全攻略】2022-2023学年高二数学下学期核心考点+重难点讲练与测试(沪教版2020选修一+选修二)上海市松江一中2021-2022学年高二上学期期末数学试题
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解题方法
5 . 无穷等比数列
的前n项和为
,若其首项为
,且
,
,则
的取值范围是______ .
![](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/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8141d87fb02b08c88b0c9f27f839a7d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4459675e3457b45df1f73c518ac67014.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
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|
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6 . 已知首项为2的等比数列
的公比为
,则这个数列所有项的和为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
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7 . “数列
和数列
极限都存在”是“数列
和数列
极限都存在”的( )条件
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fce83115a50f99e08e9a2db7267aeed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c394d7bd6be49f089aa78d2d4fd0a9cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa779be3036f072af225380d85f662f.png)
A.充分非必要 | B.必要非充分 | C.充分必要 | D.非充分非必要 |
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2020-12-13更新
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3卷引用:新疆维吾尔自治区乌鲁木齐市高级中学2024届高三上学期12月月考数学试题
新疆维吾尔自治区乌鲁木齐市高级中学2024届高三上学期12月月考数学试题(已下线)上海市华东师范大学第二附属中学2021届高三上学期12月月考数学试题上海市位育中学2021届高三下学期开学考试数学试题
8 . 等比数列
的首项为1,公比为3,则极限
的值为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d93faa79c16a2ae8eda007b64154e403.png)
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