名校
解题方法
1 . 已知
中,
,
,
.
(1)求
;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d454c14fd589fcfbe6aec2797df5894c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d3bfa155ad67018da4d65815c5e5b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee5f7ad5ce019c9d6bffdb16a2a4cb0.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d54d09ef825305de83671448a3dea21.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
解题方法
2 . 已知向量
,
,
,若
,则
=________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/464b8e8656444ef4831340d6a637f457.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32e0ae48fa9905cd31564f3708ae9117.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2da9be6e860d6c93326dbe9f0e91efa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12976a4d92584494d1c2c714684d45b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b0b08e47140e7ad11b36020a4068c1.png)
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名校
3 . 若
,
,
,则
=( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e250e35f124081661a1652e8c21ad47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13eda395cf61785366f5a950ddd06bfe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a846e4f97db3eebd355766507e12fe21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
A.![]() | B.0 | C.1 | D.2 |
您最近一年使用:0次
2021-12-25更新
|
1362次组卷
|
6卷引用:安徽省宿州市萧县鹏程中学2021-2022学年高一普高班下学期第一次质量检测数学试题
安徽省宿州市萧县鹏程中学2021-2022学年高一普高班下学期第一次质量检测数学试题人教A版(2019) 必修第二册 突围者 第六章 第三节 课时2平面向量的正交分解及坐标表示人教A版(2019) 必修第二册 实战演练 第六章 课时练习08平面向量的正交分解及坐标表示平面向量加、减运算的坐标表示(已下线)6.3 平面向量基本定理及坐标表示黑龙江省哈尔滨市第十一中学校2022-2023学年高一下学期4月月考数学试题(已下线)6.3.2平面向量的正交分解及坐标表示(分层作业)-【上好课】
解题方法
4 . 已知
,
.
(1)当k为何值时,
与
平行.
(2)若
,
且A,B,C三点共线,求m的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca63c2a9045fc77b60517e6b405d7013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a508c7b1a3b4e229ffa2a6ee4e48300.png)
(1)当k为何值时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/496590f060e41cbaca42b9eaca3cc6f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697e82d288df5ac7656340301e636646.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa113fa6a474d730d41e2457ea31dae2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90e06541f9fb593bb1740428297f5ace.png)
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5 . 已知向量
,
,
.
(1)求
;
(2)求满足
的实数
,
;
(3)若
,求实数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172014fe535f3d3095bfc9cf9a51de6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3bb7ccb422f0c02385a5adcd1606c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff4a2089d6479948aa6427901f42d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a91148130d17c2a6cf9bdb600cc58be6.png)
(2)求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9e21d2da07fb16f60927151b7aa68c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16259f8a3e084133ae22d0f8e8dd18d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
名校
解题方法
6 . 已知向量
,
,则向量
与
的夹角的余弦值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91278b5a2b6be826dbef1fb576813b84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d1fd82c5467c7fc42d657a44fde5c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a5db6a435eabfc80fc2e99902c046d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594ffcc1c3cc0bc59d021c23f853201a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-08-13更新
|
540次组卷
|
4卷引用:安徽省滁州市2020-2021学年高一下学期期中联考数学试题
名校
7 . 设平面向量
,
,若
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172014fe535f3d3095bfc9cf9a51de6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a86c86ffcb57b0daf8ca834aba4734.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/069da5c624837df29947b7b8bf722097.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d4f1d016e1b3849a0817c836a5c9284.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-08-13更新
|
448次组卷
|
4卷引用:安徽省宣城六校2020-2021学年高一下学期期中数学试题
名校
解题方法
8 . 已知平面向量
,
,
,则向量
与
的夹角为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47deef0274b0ab2da8ec7c1e22bf50a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c64f2d6f4a96448993b473d135e86b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2170ea0e559ca577ed4054f9e9221c99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c23f690b5cc8c07c53f81f7d0de9f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/524594bf0942ed86f56fc1eee120a81a.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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9 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da62e6e2acaaabeec343282944f0e95f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93b3d4871d6e550524e5c17313aad9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b85acc53854d34d8964a32fd13ccfdbf.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
10 . 在平面直角坐标系
中,
,
,
.
(1)求
的坐标;
(2)试用
,
表示
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6646e758862a34d89ee14de8a1ea13b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6419152065edb8cabf887b65adb4a73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9446ea29ddb6650a5a0cf7ac6f17d80.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8cd33106bb909bf9799b21572d5baf6.png)
(2)试用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d60dcb171bb7fd972aab8294d63acdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d20ec3efaa6b6ff5769e8999df5714a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f68628a408537b1cf3bf1ca2a69731b6.png)
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