1 . 一艘船以4km/h的速度沿着与水流方向成120°的方向航行,已知水流速度为2km/h,若船的实际航行方向与水流方向垂直,则经过3h,该船的实际航程为_______ km.
您最近一年使用:0次
2020-02-06更新
|
357次组卷
|
3卷引用:浙江省金华市云富高级中学2020-2021学年高一下学期3月月考数学试题
名校
2 . 在平行四边形
中,
,
,
,
分别是
上的点,且
,
,(其中
),且
.若线段
的中点为
,则当
取最小值时,
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21ea52361458ce2e49ed0fe99d8e6c02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab4f318fd596282e1d965ab29bbf362f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad056c25c0fdcbcc765eb5cbc6093f2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9df7fc746f8c4801d8f2f0471ba3297e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d47e63cc9c18c7a6c356748534993f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7adb9cf2ab9c819a955f3e1fe240a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b7fe8b6b69bc8dc7636330d83d0d05f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f42bddd39d348a767f4217db199291d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b50357a6545cae8348e3059312f520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fdc006ea681f5403c68c9aef85ee837.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05a61103ea69687ba91d5b380c0e2238.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-01-15更新
|
1402次组卷
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5卷引用:浙江省金华市曙光学校2021-2022学年高一下学期第一次阶段考试数学试题
浙江省金华市曙光学校2021-2022学年高一下学期第一次阶段考试数学试题江苏省扬州市2019—2020学年高一上学期期末数学试题江苏省无锡市南菁高级中学2020-2021学年高一(普通班)下学期第一次阶段考试数学试题(已下线)专题5-2 向量线性运算及四心综合归类-1(已下线)专题13 平面向量(选填题)-1
名校
3 . 如图,直角
的斜边
长为2,
,且点
分别在
轴,
轴正半轴上滑动,点
在线段
的右上方.设
,(
),记
,
,分别考查
的所有运算结果,则
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/bb2a706f-550c-4d08-9bb0-ff8308a41d51.png?resizew=212)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68e744f480e11f588570c5d6738799f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab609a6574633ebabcff3e73fa862081.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a075bc0511cf31ed51953fccf9922f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b82ecddfc6f7db708243cbd879f7ee26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af7056e72e32e2d6eb952f58d04a3af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/bb2a706f-550c-4d08-9bb0-ff8308a41d51.png?resizew=212)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
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2019-09-13更新
|
4289次组卷
|
8卷引用:浙江省金华十校2018-2019学年高一下学期期末调研考试数学试题
浙江省金华十校2018-2019学年高一下学期期末调研考试数学试题江西省南昌市洪都中学2019-2020学年高二上学期第三次联考理数试题湖南省长沙市长郡中学2020-2021学年高二上学期入学考试数学试题(已下线)【新东方】双师317高一下(已下线)期末重难点突破专题01-【尖子生专用】2021-2022学年高一数学考点培优训练(人教A版2019必修第一册)沪教版(2020) 必修第二册 单元训练 第8章 向量的应用 (B卷)安徽省合肥市第一中学2022-2023学年高一下学期期中考试数学试卷广东省江门市新会第一中学2023-2024学年高一下学期期中考试数学试题
名校
4 . 在△ABC中,tanA=﹣3,△ABC的面积S△ABC=1,P0为线段BC上一定点,且满足CP0=
BC,若P为线段BC上任意一点,且恒有
,则线段BC的长为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dac452fbb5ef6dd653e7fbbef639484.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5589c5d78be71144b92cb1e4081858.png)
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2018-11-10更新
|
2549次组卷
|
3卷引用:浙江省浦江中学、长兴中学、余杭高中三校2021-2022学年高一下学期3月联考数学试题
5 . 设
,若平面上点
满足对任意的
,恒有
,则一定正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e48867e261c61d24a0a1a4f7ff4627c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd9736828195f010db4e1f0a9dea7a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b20ab8461652c766fd665744e146e1e7.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-07-11更新
|
1746次组卷
|
6卷引用:【全国校级联考】浙江省金华十校2017-2018学年第二学期期末调研考试高一数学试题
解题方法
6 . 已知平面内任意不共线三点
,
,
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6fc69941a8ebdc0d3728da9b220101.png)
A.正数 | B.负数 | C.0 | D.以上说法都有可能 |
您最近一年使用:0次
解题方法
7 . 已知等边
的边长为2,
为
内(包括三条边上)一点,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5599e9781b55e130054916224f24777.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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8 . 已知向量
满足
,若
,则
的最小值是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae75091208abbb1625593fbf36dfc84f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071e5872a9a60713cc18ef8d46458c67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ed041e2984bd9748d0c0d16ba1e9084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/797e1e700ae27f723491fa02af1b4498.png)
A.![]() | B.![]() | C.1 | D.2 |
您最近一年使用:0次
9 . 已知
,
,
,
,且
,则
的最小值是________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c697259f74c85aec46ec7d08b0d68836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e9067d3ca4fae88e071e39a3448004.png)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649652736/STEM/9ea930daf60544c7b2989a317e161dad.png?resizew=85)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649652736/STEM/4b6c443a14d24b4a85154e08a8a0bd3c.png?resizew=117)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649652736/STEM/5a913e69d0c8460799a14396a05b9099.png?resizew=65)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62bbe29e8384de5beee0590d599070c9.png)
您最近一年使用:0次
10 . 已知
,
,
,且
,
,
(1)求
和
的坐标;
(2)求向量
.
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649677312/STEM/34fce53ce4fb4968bf8826f459084c6c.png)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649677312/STEM/fff04ce715ae472186abad22a0a503e4.png)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649677312/STEM/31a34fb7a6544347a182e690ed18d812.png)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649677312/STEM/cb26838162824d58a79d41d92816e2e1.png)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649677312/STEM/e25140f7361e4e948fdf1524fe20d967.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649677312/STEM/fe153f95418c4b849ebf17534fa8d90e.png)
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649677312/STEM/de9f8a098ade4d4aa569a87f248ac27a.png)
(2)求向量
![](https://img.xkw.com/dksih/QBM/2015/8/7/1572207644188672/1572207649677312/STEM/e869e6af52214e44a5cf80404d173c9d.png)
您最近一年使用:0次