20-21高一下·上海·课后作业
1 . 已知在
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4397f6e86c69e6b597e7e8635afbfb8.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407d1b898eda5400427765da6b30b862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4397f6e86c69e6b597e7e8635afbfb8.png)
您最近一年使用:0次
2 . 下面给出的关系式中正确的个数是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2020-07-04更新
|
286次组卷
|
3卷引用:考点28 平面向量的数量积与应用(考点专练)-备战2021年新高考数学一轮复习考点微专题
(已下线)考点28 平面向量的数量积与应用(考点专练)-备战2021年新高考数学一轮复习考点微专题河北省石家庄市师大实验2020-2021学年高一下学期期中数学试题海南省三亚华侨学校2019-2020学年高一下学期开学考试数学试题
2019高三下·全国·专题练习
名校
解题方法
3 . 过圆
外一点
作圆
的两条切线,切点分别为
,
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b321c815803dd623c491e180dcdc1cca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cb6573126516181bee81e64513ec1da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b321c815803dd623c491e180dcdc1cca.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2019-04-25更新
|
421次组卷
|
3卷引用:2019年4月2019届高三第二次全国大联考(新课标Ⅱ卷)-理科数学
(已下线)2019年4月2019届高三第二次全国大联考(新课标Ⅱ卷)-理科数学陕西省西安市高新第一中学2020-2021学年高一下学期第二次月考数学试题陕西省咸阳市泾阳县2021-2022学年高一下学期期中数学试题
2021高三·全国·专题练习
解题方法
4 . 在①
,②
,③
三个条件中任选一个补充在下面的横线上,并加以解答
在
中,角
,
,
的对边分别为
,
,
且______,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c1ba07e7a73d022b99743224c61a745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b63f13c587461426432358d5480438a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e2c08081134842da81bf81606c4cdb7.png)
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b292a8835d2b23ecc22bc2097eeb4f.png)
您最近一年使用:0次
2021高三·全国·专题练习
5 . 在①
,②
,③
三个条件中任选一个补充在下面的横线上,并加以解答
在
中,角
,
,
的对边分别为
,
,
且______,若
为
边上的中线且
,
的面积为
,求
的长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c1ba07e7a73d022b99743224c61a745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b63f13c587461426432358d5480438a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b98e7dbee42c877486a3a236f1791460.png)
在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c6c80e87fdc77a3d89fffc1f388894b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
您最近一年使用:0次
解题方法
6 . 给出下列四个命题:
①若
,则对任意的非零向量
,都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414c4b7cbf90e2447c829e2feb24d8e5.png)
②若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95a60c8be97a2f7fdc2c306d4c52c1f.png)
③若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a7e519edfac1c359d1f1a7a1940797.png)
④对任意向量
都有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53d9dd599297d984517d145e95b8e1f.png)
其中正确的命题个数是( )
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ac83b90b25c938f37b0c548af0c4d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/433b94c39737727e53468df419d8314a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414c4b7cbf90e2447c829e2feb24d8e5.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53ac83b90b25c938f37b0c548af0c4d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414c4b7cbf90e2447c829e2feb24d8e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95a60c8be97a2f7fdc2c306d4c52c1f.png)
③若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5244da74f8090bac8adb9f0fbf0fe4f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a8257a69f6d6e48f0696be859db61a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6a7e519edfac1c359d1f1a7a1940797.png)
④对任意向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79f0703f0b825571f321c7e2b29e1d7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53d9dd599297d984517d145e95b8e1f.png)
其中正确的命题个数是( )
A.3 | B.2 | C.1 | D.0 |
您最近一年使用:0次
7 . 功就是力与力的方向上所产生的位移的________ .
您最近一年使用:0次
名校
解题方法
8 . 已知向量
和
的夹角为
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c110a447a2e9e9d78aed9aee57da1a6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16e4cad23ba3869530767db0d38e2ea7.png)
A.-10 | B.-7 | C.-4 | D.-1 |
您最近一年使用:0次
2020-08-26更新
|
200次组卷
|
11卷引用:专题07 平面向量-2020年高三数学(理)3-4月模拟试题汇编
(已下线)专题07 平面向量-2020年高三数学(理)3-4月模拟试题汇编2019年上海市长宁(嘉定)区高三上学期期末质量检测(一模)数学试题2019年上海市长宁区、嘉定区高三上学期期末教学质量检测(一模)数学试题上海市松江二中2019-2020学年高二上学期期中数学试题2020届湖南省长沙市明达中学高三(高复部)第二次模拟考试理科数学试题2020届辽宁省锦州市渤大附中、育明高中高三下学期开学摸底考试数学(文)试题(已下线)8.1.2向量数量积的运算律练习(1)上海外国语大学附属大境中学2021-2022学年高一下学期期末数学试题上海市行知中学2020-2021学年高二上学期12月月考数学试题【全国百强校】黑龙江省大庆实验中学2018-2019学年高一上学期期末考试数学试题吉林省辽源市东辽县第一高级中学校2019-2020学年高一下学期期中考试数学试题
9 . 如图,在单位圆
中,
为圆上的一个定点,
为圆上的一个动点,
的取值范围为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3b89e7ff008dea7530bdc4ea5b6419d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/1/44708a64-1497-46de-8eba-cdb394517090.png?resizew=204)
您最近一年使用:0次
2019高三上·全国·专题练习
10 . 平面向量
,
满足
,且
,
,则向量
与
夹角的正切值为__________ .
![](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/6b0c56978abcfb2a2f5799358301f763.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf0b40ab957abd03f1db03ddf71242fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/285a78e061d318c724971ce7def2d8dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969604545902c9a66549a4a44ec3a3c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ab17fd4247cdd710c363d5d3fbc5bd.png)
您最近一年使用:0次