名校
解题方法
1 . 已知
为单位向量,则“
”是“存在
,使得
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64c5562bd4d1b54424330cb6329cd79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/240c14f918463aa66ae2ad52c55ba4df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3be362dec96173f246ff747264007817.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5814266ed6bb60b7b58fe7e0f02eb48a.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
2023-01-05更新
|
1862次组卷
|
4卷引用:浙江金华第一中学2022-2023学年高三下学期3月月考数学试题
浙江金华第一中学2022-2023学年高三下学期3月月考数学试题浙江省名校协作体2022-2023学年高二下学期开学联考适应性考试数学试题北京市西城区2022-2023学年高一上学期数学期末试题(已下线)专题强化训练一 平面向量的各类问题精选必刷题-2022-2023学年高一数学《考点·题型·技巧》精讲与精练高分突破系列(人教A版2019必修第二册)
名校
解题方法
2 . 已知平面向量
,
满足
,则
的取值范围是___________ ;若
,则
的最小值是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a92e6eba8dab638fd66831cd3a0b6d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427fa45527d0ce469bfd060bf6f991f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fff4d8ade61bc52c4bc50a2dd945851.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8882eb3b6131d06bf916c179d9bd9955.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b00e4666d48935d62b860304f72ff8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb6753f494dbcbc843644eaaac6c17d4.png)
您最近一年使用:0次
3 . 已知平面向量
,且
.若对任意的
,均有
的最小值为
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ff4a36d032d313317cb2dfc51dfdcf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2cc1f1ef9ad32eef62aefa4c3fc3d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e3b1d323745455e0bbac734afff0aec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c690957b07d649355ce8b4f4155fe4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5451b05232f9f3a10b27997a32827077.png)
您最近一年使用:0次
19-20高一·浙江·期末
名校
4 . 已知平面向量
,
,
,
满足
,
,
,
,则
的取值范围为______ .
![](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/ec655f610928ca21831e26645a21e99c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec5f5bbd930bfb957eff31038b2380f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3700dbd77c373eb91878b3d2b163b702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7677fa4ecba4dd4005f5a1b52cf86b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08c3789446b90577e0f3a7b93535ef04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53771a95be3cb63cfd5a180bd35dcc85.png)
您最近一年使用:0次
2020-12-16更新
|
1049次组卷
|
6卷引用:浙江省百校2020-2021学年高三上学期12月联考数学试题
浙江省百校2020-2021学年高三上学期12月联考数学试题浙江省绍兴市第一中学2020-2021学年高三上学期期末数学试题(已下线)【新东方】绍兴数学高三上【00005】(已下线)【新东方】419(已下线)2022年高考浙江数学高考真题变式题7-9题(已下线)2022年高考浙江数学高考真题变式题16-18题
5 . 已知平面向量
,
满足
,则下列不等式一定成立的是( )
![](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/90eb96b770a4bed15037b68a77eb9667.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 平面向量
,
满足:
,
,
,则
的最大值为( )
![](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/10bb9bf310fd4b205e9dc823d5a0a7cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9b44e12bcdc2bd13ff0d4f08eec0339.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce014d83c5cbf2d8352aba95cf469c9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad52cc8dadc46aa45143c633fadaed20.png)
A.2 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7 . 已知
是平面向量,
,若
与
的夹角为
与
的夹角为
与
的夹角为
,则
的最大值是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96022a881e03e32d3483d997c3f170c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f29f1ec5bfefe2de143944562f6b2734.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/240039f6196c54092e86b84eae8eebc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/940e3931d5bba06a006e07a90223479f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb573cc0f30d5c32cdad1510793f0e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63a087749d28290a98d8177160b34961.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c9ccf48cd5065574f25d6fa6f5a2168.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-31更新
|
335次组卷
|
2卷引用:2019届浙江省五校高三上学期第二次联考数学试题
8 . 在平面内,
,若
则
的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d09260b45b4f89861857353a46606a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d3a79abff8b62cf99005149b4d253d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64dd46ef751407ae195bb1918f74a1f3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2017-02-25更新
|
774次组卷
|
2卷引用:2017届浙江省名校协作体高三下学期考试数学试卷
11-12高三上·浙江温州·期中
9 . 已知
,
,
,
且
,则
的最小值是___________
![](https://img.xkw.com/dksih/QBM/2012/8/2/1570948996243456/1570949001707520/STEM/8c473e8d5a0446a792f33ef2afdf3bde.png?resizew=59)
![](https://img.xkw.com/dksih/QBM/2012/8/2/1570948996243456/1570949001707520/STEM/39b9766779b24308af25e5a7370a3880.png?resizew=59)
![](https://img.xkw.com/dksih/QBM/2012/8/2/1570948996243456/1570949001707520/STEM/32ec6b4d083f41c185472a748821eebc.png?resizew=88)
![](https://img.xkw.com/dksih/QBM/2012/8/2/1570948996243456/1570949001707520/STEM/e2508307f2be403a87dcf0bdae017974.png?resizew=120)
![](https://img.xkw.com/dksih/QBM/2012/8/2/1570948996243456/1570949001707520/STEM/36f8345311cb43bcb617183e66b98f49.png?resizew=68)
![](https://img.xkw.com/dksih/QBM/2012/8/2/1570948996243456/1570949001707520/STEM/e908bbc257c14dc3a35fa1a5efe25cbc.png?resizew=39)
您最近一年使用:0次
10-11高三下·浙江杭州·阶段练习
解题方法
10 . 已知O为
内一点,若对任意
有
,则
一定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aff8d9b6533ff319420cdc5e8740b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538dd8580c140bdcf111cb1ade530a76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.直角三角形 | B.钝角三角形 | C.锐角三角形 | D.以上均有可能 |
您最近一年使用:0次