1 . 直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3aa3adcb154f6144903d456289ecb0f.png)
与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
的夹角大小为
_____(结果用反三角函数值表示).
2020-02-03更新
|
78次组卷
|
2卷引用:2016届上海市黄浦区高考二模(文科)数学试题
2 . 已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97a11b28554e8c194d15bb306fbb6b8f.png)
,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0cc833b9d77fa9c433eb8400ca7a8b0.png)
,若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
的夹角为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
,则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
=
_____.
2016-12-03更新
|
1255次组卷
|
3卷引用:2014届上海市松江区高三三模冲刺理科数学试卷(已下线)2014届上海市松江区高三三模冲刺理科数学试卷(已下线)2014届上海市松江区高三三模冲刺文科数学试卷(已下线)上海市华东师范大学第二附属中学2016-2017学年高二上学期12月月考数学试题