名校
解题方法
1 . 在平面四边形
中
.
(1)求
;
(2)若
求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb3f9a5da641be35117fd35ba07a6aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daebdf81f81bb62bc3ec07ab59675d70.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd1461c11203a7cd31d3bdcf820601c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/230ae3a25eb8504d461c8703cdcd01f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ffb98f1e3c1317c0db403d3af04bdc.png)
您最近一年使用:0次
2023-11-25更新
|
500次组卷
|
2卷引用:四川省雅安市联考2024届高三上学期期中数学(文)试题