1 .
是等边三角形,点D在边
的延长线上,且
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
______ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc7aa1208ad706c46b37453e3087a90.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78220bdc4f0d3b1b0919f6a147d85a09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adce79579360c94699123b74bb2795ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1ec5d678ec42846e1d28301e3bfd4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc7aa1208ad706c46b37453e3087a90.png)
您最近一年使用:0次
2020-06-03更新
|
543次组卷
|
4卷引用:四川省泸州市泸县第四中学2021-2022学年高一下学期期中考试数学试题
2 . 在△ABC中,内角A,B,C所对的边分别是a,b,c.已知acosB=bcosA,
,边BC上的中线长为4.则c=_____ ;![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03465bbf22e0827f31898bff78ebfdf.png)
_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1622811c0d00a2f99b238f9ca353d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d03465bbf22e0827f31898bff78ebfdf.png)
您最近一年使用:0次
2020-03-19更新
|
662次组卷
|
6卷引用:四川省内江六中2020届高三高考数学(理科)强化训练试题(三)
四川省内江六中2020届高三高考数学(理科)强化训练试题(三)2020届浙江省高三高考模拟数学试题(已下线)2020届高三3月第01期(考点04)(理科)-《新题速递·数学》(已下线)2020届高三3月第01期(考点04)(文科)-《新题速递·数学》2020届宁夏石嘴山市第三中学高三第三次模拟考试理科数学试题(已下线)第二篇解三角形02-2020年高考数学二轮复习选填题专项测试(文理通用)
3 . 在
中,内角
所对的边分别是
.若
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
____ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce5be4af90f25e39f94b410f7e59300.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4c5cd6ce30ac70cd343334139c1a478.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
您最近一年使用:0次
2019-09-12更新
|
313次组卷
|
3卷引用:四川省仁寿第一中学校北校区2019-2020学年高一下学期开学考试数学试题