名校
1 . 已知
中,
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59cc156fb2f4bb7e4451de2a7fdf1395.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff510a4fa885c4251d938ff0f8570dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947836d4d6962f6b5bcd1b363b264788.png)
A.![]() | B.![]() | C.8 | D.9 |
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2022-09-28更新
|
1009次组卷
|
6卷引用:吉林省通化市梅河口市第五中学2022-2023学年高一下学期期末数学试题
名校
解题方法
2 . 已知
与
的夹角为
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4247a5aa34b3e197b79719e8606b02f6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae98586d80f892771c90ab39eaced90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee437e6ff470c2f67b8429f57b90ae37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cf5f671140ad299c67134642f1ffdf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed13f678d9d69e61ec74d8dcedce3764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4247a5aa34b3e197b79719e8606b02f6.png)
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2021-09-23更新
|
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5卷引用:吉林省通化市部分重点中学校2021-2022学年高一下学期期末数学试题
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3 . 在平行四边形
中,
,
,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f945a69cf7e8213e50622125cde652f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2df0749af82283556a8d93bad45e96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423784fe451ab295803c18bef18f4af0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5085e3cdef9ea6c564e079f745d6fdb.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2020-01-17更新
|
830次组卷
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4卷引用:2020届吉林省通化市梅河口市第五中学高三上学期期末数学(理)试题
2020届吉林省通化市梅河口市第五中学高三上学期期末数学(理)试题2020年1月广东省大联考高三数学(理科)试题(已下线)2020届高三1月(考点05)(理科)-《新题速递·数学》(已下线)专题07 平面向量的数量积的千万头绪-备战2020年高考数学二轮痛点突破专项归纳与提高
名校
解题方法
4 . 已知向量
满足
,
,且
.
(1)求向量
与
的夹角;
(2)设向量
,当
时,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64fa2fcefaf3d8868da0cb52877c5247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8faf351b569991fbdb8d8d30c72e72b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ace13ebf9148c275e0b1f0ac5f5b6b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60df185b4405d61493f2745b1158229e.png)
(1)求向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
(2)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e176a51b22bb021959e4c31564127e08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee72261f6901e62dfd0ffe547406544.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88d2bb1248ff1123ebc2cb9d7fc16d25.png)
您最近一年使用:0次
2019-01-09更新
|
836次组卷
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3卷引用:吉林省通化市第十四中学2018-2019学年高一上学期期末考试数学试题