名校
1 . 在
中,角
,
,
所对的边分别为
,
,
,
.
(1)若角
,求角
的大小;
(2)若
,
,求
.
![](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/2f29fc953cf6f3b82b137855149dc901.png)
(1)若角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36ec31cfd615abfbee3ed2f4a1d8883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36cec8e1998809298db6708d060afbb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2023-03-25更新
|
929次组卷
|
4卷引用:安徽省安庆市2023届高三模拟考试(二模)数学试题
名校
2 . 已知函数
.
(1)求
的单调递减区间;
(2)
中内角A,B,C所对的边分别为a,b,c,
,求A的内角平分线
的长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/737dcccd370842cfb0ee2d0f4aa67587.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3f029c13609ddf37c03e5ba19d84321.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
您最近一年使用:0次
2023-03-23更新
|
2920次组卷
|
4卷引用:山东省济南市2023届高三下学期3月一模数学试题
山东省济南市2023届高三下学期3月一模数学试题山东省昌乐二中2022-2023学年高三下学期二轮复习模拟(一)数学试题(已下线)第五篇 专题2 逆袭90分综合模拟训练(二)广东省茂名市高州中学2023-2024学年高二上学期12月月考数学试题
名校
解题方法
3 . 在
中,角A,B,C所对的边分别为a,b,c,
.
(1)若
,求
的值;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b4d95608fd2df8254150e0b9da15649.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f41cb252b9b4ed62594da3371a5c73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b03005d17bf564371ad29fea41f5c650.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a70d32c64918aa4d1d9d3ce0bdbf7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-03-22更新
|
2640次组卷
|
4卷引用:江苏省苏锡常镇四市2023届高三下学期3月教学情况调研(一)数学试题
江苏省苏锡常镇四市2023届高三下学期3月教学情况调研(一)数学试题专题10解三角形(已下线)江苏省苏锡常镇四市2023届高三下学期3月教学情况调研(一)数学试题变式题17-22山东省菏泽市菏泽一中八一路校区2024届高三上学期12月月考数学试题
解题方法
4 . 已知锐角△ABC的内角A,B,C的对边分别是a,b,c,且
.
(1)求角C的大小;
(2)若
,求c的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a212b5c92ba56f25a1bdfca59e9523.png)
(1)求角C的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7dbc702617c765a573961953cc0901.png)
您最近一年使用:0次
2023-03-22更新
|
1217次组卷
|
5卷引用:贵州省2023届高三3+3+3高考备考诊断性联考(二)数学(文)试题
贵州省2023届高三3+3+3高考备考诊断性联考(二)数学(文)试题贵州省2023届高三3+3+3高考备考诊断性联考(二)数学(理)试题甘肃省张掖市2023届高三下学期4月联考数学(理)试题甘肃省张掖市2023届高三下学期4月联考数学(文)试题(已下线)广东省佛山市第一中学2024届高三上学期第二次调研数学试题变式题17-22
名校
解题方法
5 . 在斜△ABC中,内角A,B,C的对边分别是a,b,c,
,AD平分∠BAC交BC于点D,
.
(1)求A的大小;
(2)若
,求△ABC的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77bb61b5fc85fca1de0210681386c5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4aca5534bce25acaeb7379deed8f8f.png)
(1)求A的大小;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fcc480016747ca3595a20507ff3c2c9.png)
您最近一年使用:0次
解题方法
6 . 在
中,角
的对边分别为a,b,c,且
.
(1)求B;
(2)若
外接圆的半径为
,点D为
边的中点,证明:
.
![](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/989eda64e30fb99b980be75584f6de07.png)
(1)求B;
(2)若
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56707696f20a83430c6c11aeded99cf.png)
您最近一年使用:0次
2023-03-18更新
|
608次组卷
|
3卷引用:广东省揭阳市普宁国贤学校2023届高三下学期3月衡水大联考数学试题
广东省揭阳市普宁国贤学校2023届高三下学期3月衡水大联考数学试题广东省揭阳市普宁市华美实验学校等校2023届高三下学期3月大联考数学试题(已下线)专题6.8 解三角形的综合应用大题专项训练-举一反三系列
名校
解题方法
7 .
的内角A,B,C的对边分别为a,b,c,已知
.
(1)求角A;
(2)若
,
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adb280e47af5116e351eece0113bb79c.png)
(1)求角A;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f12c618da29d3e2e341a8c2dc974a6fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5742b2684d00be50a66e01c9acb6b51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-03-14更新
|
1473次组卷
|
4卷引用:陕西省商洛市2023届高三下学期一模文科数学试题
陕西省商洛市2023届高三下学期一模文科数学试题陕西省商洛市2023届高三下学期一模理科数学试题(已下线)专题06三角函数与解三角形(解答题)江苏省泰州中学2022-2023学年高一下学期期中数学试题
名校
解题方法
8 . 如图所示,已知DOE是半径为
,圆心角为
的扇形,P为弧
上—动点,四边形PQMN是矩形,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/13/38ebe02f-b874-4acc-9a7c-773861ac2559.png?resizew=171)
(1)求矩形PQMN的面积
的最大值及取得最大值时的x值;
(2)在
中,
,
,其面积
,求
的周长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35361e76a7c85d1886728c8d0200b234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0c44512cb86bcf48c6d21357f45b533.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c38d6ead3fcd88306c45e7411b418b19.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/13/38ebe02f-b874-4acc-9a7c-773861ac2559.png?resizew=171)
(1)求矩形PQMN的面积
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65d7df41d957b13c63cd290dc6936b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6de1d395e6c48c0676a1488a299479d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a72335ff513c24f55115bd073ab7c9a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
名校
9 . 已知
.在
中,
,
.
(1)求角
的大小;
(2)若
,
,求
的值及
边上的高.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbdb67bcdaf181d1d46f87bfdc1c42fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cee865f5a76fca31f61ccac4df032c74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5e009486af263893ca8290be72f258.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f98e9c9cbdad60f42c7be2e38a07915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f002f960ec07ea229ed243e2d991d83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
2023-03-07更新
|
1397次组卷
|
3卷引用:北京市人大附2023届高三下学期开学考数学试题
解题方法
10 . 已知
的内角A,B,C的对边分别为a,b,c,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc50b8601d1ad6a235ac63366928c7df.png)
(1)求
;
(2)若
,求
外接圆的半径R.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc50b8601d1ad6a235ac63366928c7df.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/810fbd667e955bc8c2a470fef6a0de19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023-02-23更新
|
1545次组卷
|
2卷引用:江苏省连云港市2023届高三下学期2月调研数学试题