解题方法
1 . 设两个非零向量
不共线,若
和
共线,则实数
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec087ac9322b662a41e6efa997b31c71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a530d0897a3849cd507ae20e6d75c8fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c420338c78f2c9816cae93eaead79bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2 . 如图,在山脚A测得山顶P的仰角为
,沿倾斜角为
的斜坡向上走d m到达B处,在B处测得山顶P的仰角为
,则山高![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb70883828ee231b42167ca909d4f96.png)
_________ m.(结果用d、
、
、
表示)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffb70883828ee231b42167ca909d4f96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f435efcc7869eec21bdba1ed81dc3f5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/5/9/48f75816-a9cb-4bb0-835b-9f9cd27c0a60.png?resizew=305)
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2023-05-05更新
|
1401次组卷
|
4卷引用:江苏省无锡市辅仁高级中学2021-2022学年高一下学期期末数学试题
江苏省无锡市辅仁高级中学2021-2022学年高一下学期期末数学试题(已下线)期末专项02 解三角形-期末高分必刷题型(人教A版2019必修第二册)(已下线)高一下学期期末考点大通关真题精选100题(1)-期中期末考点大串讲四川省宜宾市叙州区第二中学校2022-2023学年高一下学期期末数学试题
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3 . 在《九章算术》中,将四个面都为直角三角形的三棱锥称之为鳖臑.已知在鳖臑
中,
平面
,
,则该鳖臑的外接球和内切球的半径之比为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5d90f940f5693b22ddf2e7c761887d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39967d6f3aed6ce7b6643787795d451d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f690e1d6abbea460958aacc316729de6.png)
您最近一年使用:0次
2023-05-05更新
|
1896次组卷
|
4卷引用:江苏省无锡市辅仁高级中学2021-2022学年高一下学期期末数学试题
江苏省无锡市辅仁高级中学2021-2022学年高一下学期期末数学试题(已下线)模块四 专题2 小题进阶提升练( 2 )(人教B)辽宁省沈阳市第二十中学2022-2023学年高一下学期期末数学试题辽宁省抚顺德才高级中学2023-2024学年高二上学期期初考试数学试题
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4 . 已知三角形ABC中,点G、O分别是
的重心和外心,且
,
,则边
的长为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/737910fa4f974f9ed4f84c3aba0793cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47f1373f27fb0f0179b8deb9c0d39b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
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名校
5 . 命题“
,
”的否定为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21da825c05d5b169a5e7748f70602b50.png)
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6 . 已知点
是圆
上的动点,点
是直线
上的动点,记
,则
的最小值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6f5adf13b4214666292dd64b947741.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f25834d8218c53cb975c2a2fe7442a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af405a054bfe7fb7ce40e48d816467e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dca9de8b8c9c58f8f85f15bf66ec45a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2a60483e0456f3ebbb5c969ff660e3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135b08696706de37e1eab5f59697674c.png)
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7 . 经过点
且倾斜角为
的直线方程为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b92d2bbeed206ab7e8f3e237e0a8708e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
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8 . 已知椭圆
,
,
,
,
为顶点,
,
为焦点,四边形
的内切圆过焦点
,
,则椭圆的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c80eaed4257dc101cc12a838803cfa7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
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9 . ![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d0aa2fc25f71675e5303c9fd3bfe0a.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21d0aa2fc25f71675e5303c9fd3bfe0a.png)
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解题方法
10 . 已知
为函数
(
)的导函数,且
有两个不同的零点
,
,设
,则
的极值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca5bf5133f3522eccd574a4a2f5a9b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40e72f6b2ef3329828cb8fc873eeba7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d0c99ddd028f0bc3b1d64924ff0f61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dfe95fc2746da68270076da85ca0427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1987ecbd076d89da5ef1e2561d79d857.png)
您最近一年使用:0次
2022-11-10更新
|
355次组卷
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2卷引用:江苏省无锡市2022-2023学年高三上学期期中数学试题