名校
解题方法
1 . 设
,
,
分别为锐角
三个内角
,
,
的对边,且
,则下列结论正确的是( )
![](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/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/a1ab10787721d06c98dc473bca70adb9.png)
A.![]() | B.![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2021-07-18更新
|
1795次组卷
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5卷引用:重庆市复旦中学2020-2021学年高一下学期期末数学试题
重庆市复旦中学2020-2021学年高一下学期期末数学试题重庆市缙云教育联盟2022届高三第一次诊断性检测数学试题(已下线)考点09 解三角形-1-(核心考点讲与练)-2023年高考数学一轮复习核心考点讲与练(新高考专用)(已下线)第05讲 正弦定理和余弦定理的应用 (精讲)-2(已下线)6.4.2 平面向量的应用(精练)-2022-2023学年高一数学一隅三反系列(人教A版2019必修第二册)
名校
解题方法
2 . 已知
的内角A,B,C所对的边分别是a,b,c,则下列命题正确的是 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.若![]() ![]() |
B.若![]() ![]() |
C.若![]() ![]() |
D.若![]() ![]() |
您最近一年使用:0次
2021-05-22更新
|
1193次组卷
|
2卷引用:重庆市巴蜀中学2020-2021学年高一下学期期中考试数学试题
名校
解题方法
3 . 在平面四边形
中,
,
,
,
.
(1)若E为AC中点,求
的值;
(2)求
的值;
(3)若四边形ABCD为圆的内接四边形,求它的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fcd0ced286a0fbc7e4862f8147264277.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7788830ed1cb3b9c5988f70f43595f2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55c24a968c73e960698a572ab01e3698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef9a26f10ec80be707dd4c282be9c8f.png)
(1)若E为AC中点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b45134b512d4c6c4e30acb3986921c02.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3728d1c17bd92866025193c752121a7.png)
(3)若四边形ABCD为圆的内接四边形,求它的面积.
您最近一年使用:0次
2021-05-18更新
|
626次组卷
|
3卷引用:重庆市巴蜀中学2020-2021学年高一下学期期中考试数学试题
名校
解题方法
4 . 已知
的三内角
、
、
所对的边分别为
、
、
,
,
.
(1)求
面积的最大值;
(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/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d09196d6643e64ab5b9b5df02d98a1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf586f28e8fbdd8c30227f60d1aba660.png)
您最近一年使用:0次
名校
解题方法
5 . 下列条件中,能推导出
是锐角三角形的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.在直角坐标系中,![]() ![]() ![]() |
B.![]() ![]() ![]() ![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
名校
解题方法
6 . 如图:在斜坐标系
中,
轴、
轴相交成60°角,
、
分别是与
轴、
轴正方向同向的单位向量,若向量
,则称有序实数对
为向量
的坐标,记作
.在此斜坐标系
中,已知
满足:
、
.
的值;
(2)若坐标原点
为
的重心(注:在斜坐标系下,若
为
的重心,依然有![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82210e8cc44d86bfebb9a3e4b491c9e1.png)
成立).
①求
的面积;
②求满足方程
的实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2868a9fe011f56a80c9d1a8ee4604d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36fe4e713c108e118522a99ecd683924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e174e6907610a511ccab787d2e20dc96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43281a536a92e4a55addc59764403a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee557308fa0f1384b6e724dfed5aeb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0982e8e6964f2dcca734bab1fe68dc4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb6aafdbe8092a65dd828062b39cdd87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e141b27263ac236eb24f4051ec8337af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34777545c0fda31f30b6399086c65b5f.png)
(2)若坐标原点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82210e8cc44d86bfebb9a3e4b491c9e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef1a0c7211cb871554b9e2f17100d739.png)
①求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
②求满足方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3550b952eae5086b9f63a4ea58f1617b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-04-13更新
|
595次组卷
|
4卷引用:重庆市巴蜀中学2020-2021学年高一下学期3月月考数学试题
名校
解题方法
7 . 已知函数
.
(1)求
的单调递增区间;
(2)若对
,恒有
成立,且 ,求△ABC面积的最大值.
在下列四个条件中,任选2个补充到上面问题中,并完成求解.其中
为△ABC的三个内角
所对的边.①△ABC的外接圆直径为4;②
是直线
截圆O:
所得的弦长;③
;④
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13444a4c43ebc8945de1ac747d7104f1.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a82ebd4c2b70cf1ad4789e3a3b032eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73069e653c243c7979f96b8aa03ad904.png)
在下列四个条件中,任选2个补充到上面问题中,并完成求解.其中
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c15da08000c74344eedbe987f87c1d5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c3e33f0cca0dfad998e5c969ba7b2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fce7d9b6538d569d03982ba351eef0a.png)
您最近一年使用:0次
2021-02-02更新
|
405次组卷
|
3卷引用:重庆市第二十九中学校2021届高三下学期开学测试数学试题
重庆市第二十九中学校2021届高三下学期开学测试数学试题湖北省部分重点中学2020-2021学年高三上学期期末联考数学试题(已下线)专题2.2 解三角形-结构不良型-2021年高考数学解答题挑战满分专项训练(新高考地区专用)
名校
解题方法
8 . 在
中,
为边
上一点,
,
,若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/833cfda415649b832cc136caed392753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d54e182a943f960a1885b8556d07a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b70799f7fea1ec37fd0517a8722dca19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a36ec31cfd615abfbee3ed2f4a1d8883.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae248960d8c1677cf948f8251275e863.png)
您最近一年使用:0次
2021-01-23更新
|
1231次组卷
|
8卷引用:重庆市求精中学2022届高三上学期一诊模拟数学试题
重庆市求精中学2022届高三上学期一诊模拟数学试题江苏省连云港市新海高级中学2020-2021学年高三上学期期末数学试题(已下线)专题17 解三角形(客观题)-2021年高考数学(文)二轮复习热点题型精选精练(已下线)专题18 解三角形(客观题)-2021年高考数学(理)二轮复习热点题型精选精练(已下线)专题17 解三角形(客观题)-2021年高考数学二轮复习热点题型精选精练(新高考地区专用)(已下线)专题9.3《解三角形》(B卷提升篇)-2020-2021学年高一数学必修第四册同步单元AB卷(新教材人教B版)(已下线)数学-2021年高考考前20天终极冲刺攻略(二)(新高考地区专用)【学科网名师堂】 (5月23日)重庆市渝南田家炳中学校2024届高三上学期10月检测数学试题
名校
解题方法
9 . 已知三角形ABC的三个角A,B,C的对边分别为a,b,c,c=3,sinA+2sinBcosC=0.
(1)请用含a,b的式子表示cosC,sinC;
(2)求三角形ABC面积的最大值.
(1)请用含a,b的式子表示cosC,sinC;
(2)求三角形ABC面积的最大值.
您最近一年使用:0次
名校
10 . 在
中,角
,
,
的对边分别为
,
,
,且
.
(1)求
的值;
(2)若
,且
为锐角三角形,求
的取值范围.
![](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/1448754d94e9adee30da70337c245ed8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63aa90eda0d24cb8fc485a206d8ea4ff.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcde89ef2223a5e60a6dbce9eb819624.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
您最近一年使用:0次
2020-10-16更新
|
868次组卷
|
2卷引用:重庆市巴蜀中学2021届高三上学期适应性月考(二)数学试题