名校
1 . 在△AOB中,G为△AOB的重心,且∠AOB=60°,若
=6,则|
|的最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b73745b208a3816e5a6e3774409654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/633974c3ba70050ea5b0c904eb78ebd9.png)
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2018-03-28更新
|
663次组卷
|
4卷引用:陕西省西安市长安区第一中学2017-2018学年高三下学期第十五次质量检测数学(文)试题
名校
解题方法
2 . 已知椭圆
的左、右焦点分别为
、
,且
,点
在椭圆上,
,
,则椭圆的离心率
等于__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7aea48c44781a844b5c19191f70f61.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/7b2d4ff799e2f87b3786a04c83f63d5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/618b3a844ae7dc525aebea73bd96efda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c0478b592805d94bf11e271ef9f35e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/168b3e4b1d6f04226fa2687a72a268b4.png)
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2018-03-15更新
|
712次组卷
|
3卷引用:陕西省西安市第一中学2017-2018学年高二上学期期中考试数学(文)试题
名校
解题方法
3 . 如图所示,
是圆
上的两点,若
,则弦
长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c6125dd7d1f2aae9b1a9252b4cf9e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/10/524cbb6d-32ae-4f4b-9d0f-e45bbbce167d.png?resizew=131)
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2020-08-21更新
|
273次组卷
|
6卷引用:陕西省西安交大附中、龙岗中学2020-2021学年高三上学期第一次联考理科数学试题
陕西省西安交大附中、龙岗中学2020-2021学年高三上学期第一次联考理科数学试题江西省永丰中学2020届高三7月3号考前保温卷数学(理科)试题湖北省华大新高考联盟名校2020届高三(5月份)高考数学(理科)模拟试题(已下线)第29讲 平面向量的数量积及其应用-2021年新高考数学一轮专题复习(新高考专版)湖南省湘潭市2020届高三下学期第四次模拟考试理科数学试题华大新高考联盟名校2020届高考预测考试5月数学理科试题
名校
解题方法
4 . 已知平面向量
,
(
,
)满足
,且
与
的夹角为
,则
的最大值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8abaee1c69773edf2ab23813457e7133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71ba307b4e15fa3e07317bb750538d21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f731da748dfcc9dcc993292082e7470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38ea10e8fca3e7c46d57d3720457bb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e793e60cf7e608cc8698b17540c93b12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8abaee1c69773edf2ab23813457e7133.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc75d5bbf087dfe09233113c65e93e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be80b4237cd095664835c1f41d56abf9.png)
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2020-03-19更新
|
291次组卷
|
2卷引用:2020届陕西省西安市高新一中高三第五次模拟考试数学(文)试题
解题方法
5 . 设
、
是平面内相交成
角的两条数轴,
,
分别是与
轴,
轴正方向同向的单位向量,若向量
,则把有序数对
叫做
在坐标系
中的坐标.假设
,则
的大小为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b14069d21d32c724f0ebe3e311f114c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4526c88c6844a5ffe389e54c60d48981.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b28baf17059c56ee9ad1ae4814acd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b04618e5b2db68f2de6ba68972c505c.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/9b257fe21a91d22e853b1642c9d44647.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0203b006524305c3d8ee0b6c34cd872b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cec64476aaca08de0808afda3618109c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54d0e9d6ec9328f86de53aaa6c08b55a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f0e6d3115e900f1a359ec4f894e8896.png)
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6 . 已知两个单位向量
,
的夹角为
,
.若
,则实数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6c0927afc571a7c966c98192040979e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/702e66bd3ca5b04b78483fe7d8b56159.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f807f157c3c701cb68025b50665e7c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825116eb345f5505ebc8c1cdb8a1f131.png)
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名校
解题方法
7 . 已知向量
,
,
满足
,
,
,
,则向量
的模的最大值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd18461fd9d77e6fa46a654f0ab540f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939955fcd19578dc8f37415c60b187ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/371ba95d0ac2642d0e112ea2430025f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9094dcb9d744c020b0478c51a05d8ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
您最近一年使用:0次
2022-05-10更新
|
114次组卷
|
2卷引用:陕西省榆林市第一中学2021-2022学年高一下学期期中理科数学试题
名校
解题方法
8 . 已知
是圆
的直径,点
为直线
上任意一点,则
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360219e869c4b3da4e1b822d393ff742.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b979396a703fb14715ba39232f5786a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a33e5d0dbdd0f15854f0d7dd8b53058.png)
您最近一年使用:0次
2020-04-15更新
|
276次组卷
|
3卷引用:陕西省西安市高新一中2019-2020学年高三下学期3月质量检测数学(文)试题
陕西省西安市高新一中2019-2020学年高三下学期3月质量检测数学(文)试题重庆市巴蜀中学2019-2020学年高三下学期3月质量检测数学(文)试题(已下线)强化卷05(3月)-冲刺2020高考数学之少丢分题目强化卷(山东专版)
名校
9 . 设向量
,
满足
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c02942aa5dd2319b358c83dea06b07d.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db92fb9a54b14bf8bac5d8a0d17f257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7afcd4e5e94ee0f8ed21bbf6e616ff70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c02942aa5dd2319b358c83dea06b07d.png)
您最近一年使用:0次
2020-09-21更新
|
251次组卷
|
3卷引用:陕西省西安市第一中学2020-2021学年高三上学期模拟调研考试数学(理)试题
解题方法
10 . 已知
,
,向量
,
的夹角为
,则
=_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e310702748855c3edccd151aae0143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34fa8ea29001bb1f0c1e5157aff2fca5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61d9ba91555228080675080263af1489.png)
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2020-09-05更新
|
217次组卷
|
3卷引用:陕西省咸阳市2021-2022学年高二下学期期末文科数学试题