1 . 已知
为坐标原点,点
的坐标为
,点
的坐标
满足
,则
的最大值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f114df5ceabdb7e5fd3fdad4eaf056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f427dfe179a9f9fe72d8aa272242a1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7192c9c2caae15076a0130bfbb0c3d96.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2021-10-11更新
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454次组卷
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5卷引用:江西省南昌市第八中学2021-2022学年高二10月月考数学(理)试题
江西省南昌市第八中学2021-2022学年高二10月月考数学(理)试题江西省南昌市第八中学2021-2022学年高二10月月考数学(文)试题(已下线)考点15 平面向量-2022年高考数学一轮复习小题多维练(新高考版)新疆喀什市第六中学2022届高三上学期期中考试数学试题(已下线)专题05 不等式、推理与证明(数学思想与方法)-备战2022年高考数学二轮复习重难考点专项突破训练(全国通用)
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2 . 如图是以
为圆心的一个圆,其中弦
的长为2 ,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ad13b272a0851a8491f10f83bdbe85.png)
_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69ad13b272a0851a8491f10f83bdbe85.png)
![](https://img.xkw.com/dksih/QBM/2019/12/26/2363451502747648/2364154694172672/STEM/ad5e7aa28fdf49d9acc1fde0ee61d1f4.png?resizew=156)
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2019-12-27更新
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390次组卷
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4卷引用:江西省吉水县第二中学2022-2023学年高二上学期开学测试数学试题
2014高三·全国·专题练习
3 . 若
·
+
<0,则△ABC必定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d18eecc9135b568c133d8bebe6d18839.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431c8b143595051d9465017a26060b61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3c511a9ea14c7a3004dc7b823b3669.png)
A.锐角三角形 | B.钝角三角形 |
C.直角三角形 | D.等腰直角三角形 |
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2019-01-30更新
|
897次组卷
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5卷引用:江西省新余市2019-2020学年高二上学期期末数学(文)试题
江西省新余市2019-2020学年高二上学期期末数学(文)试题江西省新余市2018-2019学年高二上学期期末质量检测数学(文)试题(已下线)2014届人教版高考数学文科二轮专题复习提分训练23练习卷(已下线)考点19 平面向量的数量积及向量的应用-备战2021年高考数学(文)一轮复习考点一遍过(已下线)6.4 平面向量的应用--几何、物理-2020-2021高中数学新教材配套提升训练(人教A版必修第二册)
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4 . 已知向量
与向量
平行,则
的值为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77caf5dad9b85493b3ddb39b3e81df98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6575461aebc31bc4a13364be90266254.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab9e31d4524a63074fdac37088160bd9.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2016-12-04更新
|
353次组卷
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5卷引用:江西省七校2020-2021学年高二(常规班)上学期第三次联考数学(文)试题
名校
5 . 过圆
上一点作切线与
轴,
轴的正半轴交于
两点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
A.![]() | B.![]() | C.2 | D.3 |
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2016-11-23更新
|
278次组卷
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3卷引用:江西省南昌市实验中学2017-2018学年高二上学期期中理科数学试题
6 . 已知
,若
,则![](https://img.xkw.com/dksih/QBM/2016/9/20/1573031639203840/1573031645224960/STEM/3d9151f340ec4b8cad3d09c853288b9b.png)
![](https://img.xkw.com/dksih/QBM/2016/9/20/1573031639203840/1573031645224960/STEM/4350ecd4206c496e8dd03d945cb836df.png)
![](https://img.xkw.com/dksih/QBM/2016/9/20/1573031639203840/1573031645224960/STEM/d08a7af411ed4de4aced01efa1f6aa7a.png)
![](https://img.xkw.com/dksih/QBM/2016/9/20/1573031639203840/1573031645224960/STEM/3d9151f340ec4b8cad3d09c853288b9b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
11-12高三上·浙江杭州·阶段练习
7 . 如图,四边形
是边长为1的正方形,
,点
为
内(含边界)的动点,设
,则
的最大值等于______________
![](https://img.xkw.com/dksih/QBM/2014/5/20/1571726945140736/1571726950834176/STEM/0d56a4a006ca4b1ab499dd43e33bb380.png?resizew=47)
![](https://img.xkw.com/dksih/QBM/2014/5/20/1571726945140736/1571726950834176/STEM/6acf6f9c01354bdc91abd6dea35ff0a7.png?resizew=52)
![](https://img.xkw.com/dksih/QBM/2014/5/20/1571726945140736/1571726950834176/STEM/31e84a1a0ed343af9b61b1faab78eb56.png?resizew=16)
![](https://img.xkw.com/dksih/QBM/2014/5/20/1571726945140736/1571726950834176/STEM/7c5cf447ccd4453386dfb114071636a0.png?resizew=47)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc1519fed35d9ec56fd350f880a1b06e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dc4c63a548b91061528aa11058de75.png)
![](https://img.xkw.com/dksih/QBM/2014/5/20/1571726945140736/1571726950834176/STEM/b876718f16764724b60c3c85408ba0cd.png?resizew=208)
您最近一年使用:0次
8 . 已知
为
内一点,满足
,
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f66a8aa1d735b9b2ac2d8a373a553a.png)
的面积为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f2f3fc61c6be59729509b71da1b3d12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3ee0da554e49ecd3b5aa91551a23766.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d11a5a756d8fdd7b294c4f5fd63467b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3f66a8aa1d735b9b2ac2d8a373a553a.png)
的面积为
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9 . 已知点C在直线AB上,且对平面任意一点O,
,则
的最小值为
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490248880128/1572490254753792/STEM/46e185cf4bdc40fbb1766b033413bd69.png)
![](https://img.xkw.com/dksih/QBM/2016/2/22/1572490248880128/1572490254753792/STEM/6f7ca41f4a91472fb1e459779a08dbd4.png)
A.2 | B.4 | C.6 | D.8 |
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