解题方法
1 . 记
的内角
,
,
的对边分别为
,
,
,
边上的高为
,已知
.
(1)若
,求
的值;
(2)若
,求
的值.
![](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/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eabd5f3a86afe49dcd70571e2b96cfd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe7a93172d308a58200e3c722fe1072.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c226500103f4d4e0942a5bb981bca175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b246aa3b56becc905d3fb64c6d5ec4a.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc881a80741216172135c6c861986628.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925fc7b49455c867cb52166d072581f4.png)
您最近一年使用:0次
2 . 在
中,角A,B,C的对边分别为a,b,c,已知
.
(1)若
,
,求
;
(2)点D在边
上,
,若
,
,求a.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb5bac75f36bb1dc5c8190d4dbe681d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c77ae8ebd4919151a3fe76eb5c95544a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b01adc561735ff5be9bb97266918f2.png)
(2)点D在边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b79dd200766db27fb90d6bd1992cf658.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50196d293a863fe2f9e46199052ab8c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b266818a1165a17cdb78fc19ee175ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9ba7517a258838e45020532d5cb80d2.png)
您最近一年使用:0次
解题方法
3 . 在
中,角A,B,C的对边分别为a,b,c.已知
.
(1)求A和c;
(2)若点D在
边上,且
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91367fb1ab348765d5a36930b7e47663.png)
(1)求A和c;
(2)若点D在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d665b8ce2d05f0055bb49f1e3b346259.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
解题方法
4 . 在
中,角
所对的边分别为
.
(1)求
:
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53b40950f936cea5b94dadf76e45c42.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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名校
解题方法
5 . 在
中,角
的对边分别为
,已知
.
(1)求证:
;
(2)若点
在边
上,且
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/1987f8e803771a5778237567a61881bb.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084c14bff496f601b41c59288a828bfc.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a98ff2b0fc3504ba85a09a103ceb468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2024-01-29更新
|
821次组卷
|
4卷引用:江苏省苏州市2024届高三上学期学业质量阳光指标调研数学试题
江苏省苏州市2024届高三上学期学业质量阳光指标调研数学试题(已下线)考点15 正弦定理、余弦定理的综合应用 --2024届高考数学考点总动员【练】(已下线)重难点3-2 解三角形的综合应用(8题型+满分技巧+限时检测)浙江省杭州师范大学附属中学2024届高三下学期高考适应性考试数学试卷
名校
解题方法
6 . 在三角形
中,角
所对的边分别为
.
(1)求
的值;
(2)若
,
的面积为
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8c1a68275a6dc392f5e0ee0613921d1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7a8062f3e04fbde226248314402098f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f5b763032c085a1e60822d8dc1b3605.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2024-01-15更新
|
612次组卷
|
2卷引用:江苏省南通市如东中学、如东一高等四校2023-2024学年高三上学期12月学情调研数学试题
名校
解题方法
7 . 已知双曲线
的左、右焦点为
、
,虚轴长为
,离心率为
,过
的左焦点
作直线
交
的左支于A、B两点.
(1)求双曲线C的方程;
(2)若
,求
的大小;
(3)若
,试问:是否存在直线
,使得点
在以
为直径的圆上?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求双曲线C的方程;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c783d7c6ccce0eb16cb9985472c3d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62180fb2b68724b7b0f4f8337496c12a.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/accf35598ee054f1bf8b6584641d6d85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2024-01-15更新
|
566次组卷
|
4卷引用:江苏省南京市金陵中学2024届高三上学期期末模拟数学试题
江苏省南京市金陵中学2024届高三上学期期末模拟数学试题上海市川沙中学2023-2024学年高二上学期期末考试数学试卷湖南省衡阳市第八中学2024届高三上学期第一次模拟测试数学试题(已下线)第2章 圆锥曲线 单元综合检测(难点)-2023-2024学年高二数学同步精品课堂(沪教版2020选择性必修第一册)
解题方法
8 . 在
中,角A,B,C所对的边分别是a,b,c,且
.
(1)求角B的大小;
(2)若点D在边AC上,BD平分
,
,求BD长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26844c7324c79fac94d2d2de45a5bd25.png)
(1)求角B的大小;
(2)若点D在边AC上,BD平分
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d39b8d91afc34e4a9b0fdbb6bafb9087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6129fbf40a950fc8c516f0abaab21957.png)
您最近一年使用:0次
9 . 已知△ABC的内角A,B,C所对的边分别为
.
(1)求角B的大小;
(2)若
=
,|
|≠|
|,∠CAD=
,求△ABC的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1448d13d2a3545f12368fb22b3ff0050.png)
(1)求角B的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22df0b9632b066a89b8cd8337aefaf6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6aca7a786b3f57d94a086337f163213e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/547fe456ec0fb6da86350d14e95dae4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f9ee8474d63b06a57c3cd612c7e87d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a606b2be54ecad1b1d5541b20feb8fa7.png)
您最近一年使用:0次
解题方法
10 . 锐角三角形
中,角
所对的边分别为
,且
.
(1)求角
的大小;
(2)若
,
为
的中点,求中线
长的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.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/6f3cb51e5196112a7fcc038b84577b12.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f002f960ec07ea229ed243e2d991d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
您最近一年使用:0次