20-21高一下·浙江·期末
名校
解题方法
1 . 已知平面向量
,
满足
,
,
,
的夹角为
.
(1)求
;
(2)求
.
![](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/9722f8a42160ce6b768c05e2e1aaeaab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8094d449d3254841c7d0eb13827a61a3.png)
![](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/79a97bb4dcfab4ec7539bc783d563c49.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85037a7822cd9642d0c08ca29d61b259.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9212a2226f3154927b0a145548f4f07.png)
您最近一年使用:0次
2021-08-14更新
|
251次组卷
|
4卷引用:广东省江门市新会区陈经纶中学2021-2022学年高二上学期期中数学试题
广东省江门市新会区陈经纶中学2021-2022学年高二上学期期中数学试题(已下线)【新东方】高中数学20210527-019【2021】【高一下】江苏省常州市教育学会学业水平监测2020-2021学年高一下学期期中数学试题江苏省扬州市仪征市2022-2023学年高一下学期期中数学试题
名校
解题方法
2 . 已知
,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4d174410d168645c3e4b35376e8ac2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328c55d3df5574e2b6f5f53b55f57a3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
您最近一年使用:0次
名校
3 . 若
是非零向量,则“
”是“
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d53eace043cf6044be9128df5ddd94a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc49e0ce40eb3e997119f80198c5d22.png)
A.充分非必要条件 | B.必要非充分条件 |
C.充要条件 | D.既非充分也非必要条件 |
您最近一年使用:0次
2021-08-10更新
|
144次组卷
|
3卷引用:陕西省榆林市神木中学2021-2022学年高二上学期第四次检测理科数学试题
名校
4 . 已知圆
:
.设
是直线
:
上的动点,
是圆
的切线,
为切点,则
的最小值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311516e5293bb3735b4303e51e6172fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084b7e3980ce2aba02c620e9655f84d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72a3315b91b9ca0a3861e1928d9ee85f.png)
A.![]() | B.![]() | C.3 | D.5 |
您最近一年使用:0次
2021-08-09更新
|
1040次组卷
|
5卷引用:浙江省杭州市2020-2021学年高二下学期期末数学试题
名校
解题方法
5 . 对任意向量
,
,
,下列关系式中恒成立的是( ).
![](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/d366d8fbb7258ee051f49977441e14a2.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-08-09更新
|
440次组卷
|
3卷引用:湖北省武汉市吴家山中学2021-2022学年高二上学期10月月考数学试题
湖北省武汉市吴家山中学2021-2022学年高二上学期10月月考数学试题浙江省宁波市2020-2021学年高一下学期期末数学试题(已下线)第八章 向量专练1—数量积、夹角、模-2022届高三数学一轮复习
名校
6 . 如图,在任意四边形
中,其中
,
,
,
分别是
,
的中点,
,
分别是
,
的中点,求
=( )
![](https://img.xkw.com/dksih/QBM/2021/6/23/2749134422761472/2782500836507648/STEM/60d8618b61e6470ca13fa96b260b7e22.png?resizew=178)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d27bd71d79cb19eb554175e4ef0867.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3f8f2853d04f7b17de4371a079ed77.png)
![](https://img.xkw.com/dksih/QBM/2021/6/23/2749134422761472/2782500836507648/STEM/60d8618b61e6470ca13fa96b260b7e22.png?resizew=178)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2021-08-09更新
|
995次组卷
|
5卷引用:湖北省武汉中学2021-2022学年高二上学期第一次月考数学试题
解题方法
7 . 已知
为
的重心,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
______ ,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b753490e93d6fc1b63235538ce95aa93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e86d552ed1c5adcbc2009fe3d06e656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ca90e8a784f990c4097eec9219908d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5201fc26d013f6fb889933c0e32f5c53.png)
您最近一年使用:0次
名校
8 . 已知向量
、
满足:
为单位向量且
,
,则向量
、
的夹角是______ .
![](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/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec1cc86b7ff004a6ab4f88b7af2d58da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b4fea87bf0383b9a419d2af14b391ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb80eb942aafb194fadc473776f35b1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
您最近一年使用:0次
2021-08-07更新
|
420次组卷
|
3卷引用:江西省铜鼓中学2020-2021学年高二(实验班)上学期数学(文)试题
名校
解题方法
9 . 在
中,设
,
,
,则下列命题正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3edb4ffd300dbd7dfdcc5a751f79c482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c748c4c6d9c1e5c16a8ed47f0792f5ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325ba8093bd40f00a79e3c49010ea704.png)
A.若![]() ![]() |
B.![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
2021-08-07更新
|
1321次组卷
|
3卷引用:江苏省南通市2020-2021学年高二下学期期末数学试题
名校
10 . 已知非零平面向量
,
,
满足:
,
的夹角为
,
与
的夹角为
,
,
,则
的取值范围是______.
![](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/bb573cc0f30d5c32cdad1510793f0e7b.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/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/002e032096066a5a4a10e6d8b4fa9694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1602a90ff1c1c83b1c237553f1940262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f785147690f83dcee0a0bc6c327e75a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fa583c68f70bcf0c819cb78cce2ac38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a5a9bd10df34bffb7b63ea0477be7f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3cbad2f594e5a09a40c0634b6ead7a.png)
您最近一年使用:0次
2021-08-07更新
|
1208次组卷
|
7卷引用:浙江省温州市共美联盟2020-2021学年高二下学期期末数学试题
浙江省温州市共美联盟2020-2021学年高二下学期期末数学试题四川省内江市市中区第六中学2021-2022学年高二上学期创新班入学考试数学试题(已下线)专题4-1 三角函数性质、最值和w小题归类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)重难专攻(六) 平面向量的最值问题 B素养提升卷(已下线)重难点突破03 最全归纳平面向量中的范围与最值问题 (十大题型)-1福建省厦门第一中学2023-2024学年高一下学期第一次适应性训练(月考)数学试题福建省厦门第一中学2023-2024学年高一下学期第一次适应性数学试题