1 . 已知向量
的夹角为
,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac75f49ee82d6c9980fddb63620a538.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf1aaaea0449ea43cf2cd284441ecfbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8c9e4d7f4b46e7c3945a69bb898a32c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac75f49ee82d6c9980fddb63620a538.png)
您最近一年使用:0次
名校
解题方法
2 . 已知向量
,
满足
,
,则
的最小值为_________ .
![](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/8f18996bd00253c3ad9f91780103affb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1624c144eb6a2a62efb54811a616c7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ffc403ded5faedb326b83d5d3f69a30.png)
您最近一年使用:0次
10-11高三·福建·期中
解题方法
3 . 在平面上给定非零向量
满足
,
的夹角为
,则
的值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111939547e581e8bf029a241b9e9cb05.png)
![](https://img.xkw.com/dksih/QBM/2013/3/12/1571136810196992/1571136815685632/STEM/6145f7c4bfa849deacec85e24728f276.png?resizew=96)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111939547e581e8bf029a241b9e9cb05.png)
![](https://img.xkw.com/dksih/QBM/2013/3/12/1571136810196992/1571136815685632/STEM/caa80d9a15f2404ebc820d9f835c5527.png?resizew=25)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b336707129b6303e8601d11d8d279b.png)
您最近一年使用:0次
解题方法
4 . 平面向量
与
的夹角为
,
,
,则
( )
![](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/2d5bca00fa20e6e80480b9d06d2e52ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/993e9681181da32d59da5aa14daa853a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf342e77c56e55a35bb1151bc215a3a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92095f3b8b3ca41b60fc2473f6ec7f35.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
5 . 关于平面向量
.下列判断中正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae75091208abbb1625593fbf36dfc84f.png)
A.若![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
6 . 已知不共线的平面向量
、
、
两两所成的角相等,且
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88449ead0e93ab8cfc34b2ddcb16be5b.png)
_____________ .
![](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/082c6926889f84f438ea35f70bf05f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e019b42f36a512226d3b885284d776b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88449ead0e93ab8cfc34b2ddcb16be5b.png)
您最近一年使用:0次
7 . 已知向量
、
是夹角为
的单位向量,
,
,
⑴求
;⑵当
为何值时,
与
平行?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9bf2423499d45354dbc8377f1f04e16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc93b0039f6176446a7749d99b0c548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28ac68ab56a78287bb83c0ab49cbb97b.png)
⑴求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3321a6c9b4af731ee336ad51fca76c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c308ea87b699ee1dcb879a568899de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358d896d9eab84c6695ddc25196e6857.png)
您最近一年使用:0次
名校
8 . 平面向量
与
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d187183fb9ca200ce766e71e6ca82d9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2150cb0060a14e88e93c33cf456ae832.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/515b1e449cde902a74977b1fc3b31100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e9d58e55b275ed4c0c6d04d71c48a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d187183fb9ca200ce766e71e6ca82d9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 已知
,
与
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338189ec20d1ec7fdbbc189d209428dd.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2a746a375bb08bd0211ba9b4de0ad6.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/2ef969315b3879ea2767f61b2ebc54e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/338189ec20d1ec7fdbbc189d209428dd.png)
您最近一年使用:0次
11-12高三上·广东·期中
解题方法
10 . 已知单位向量
的夹角为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c49b83ffca4f3896f1c16fbc0de96e.png)
____
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/111939547e581e8bf029a241b9e9cb05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84c49b83ffca4f3896f1c16fbc0de96e.png)
您最近一年使用:0次
2016-12-03更新
|
474次组卷
|
4卷引用:2012-2013学年福建省三明一中、二中高一上学期期末联考数学卷
(已下线)2012-2013学年福建省三明一中、二中高一上学期期末联考数学卷(已下线)2012届广东省潮汕两市名校高三上学期期中考试文科数学2016届吉林省实验中学高三上学期二模理科数学试卷2017届重庆市第八中学高三理上适应性考试一数学试卷