解题方法
1 . 在
中,内角
所对的边分别为
,已知
.
(1)求
的值;
(2)若
.
(i)求
的面积;
(ii)求
的值.
![](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/3b85549c251f25c06533f35cce33ce90.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e83fc057cc607bd5b2398af5c1097a6b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4a024a0c7af702378a82e2d6e404682.png)
(i)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(ii)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/400f4e2dee10f36f46c586e94a19b3bf.png)
您最近一年使用:0次
名校
解题方法
2 . 已知
中,角A,B,C的对边分别为a,b,c,且
,
.
(1)求
;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4e501e9a660678f3ad06ff04878c05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4da7d2198082bd2daf849d012ab6118.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90088fd12e868e79461dab920bc088c9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
3 . 在
中,角A、B、C的对边分别为a,b,c.已知
,
,
.
(1)求c的值;
(2)求
的值:
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39900a2d790732077ffb571427a134fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da8607bde1fa6cde631a46e921d959a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3ca254e94a873cb6d7566b3ff1d15d.png)
(1)求c的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74a3687e9617b8e2f782447e8314079.png)
您最近一年使用:0次
名校
解题方法
4 . 在
中,内角
所对的边分别为
,
.
(1)求
的大小;
(2)已知
,
,设
为
边上一点,且
为角
的平分线,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/521a5932c25a8fa92d6908fcf08c1efd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21143d45f8a1eec5a18f3b82c78ac217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.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/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab2a2834d80ff574e79eae8ca8d4e94f.png)
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解题方法
5 . 已知向量
;定义函数
,称向量
为
的特征向量,
为
的特征函数.
(1)设
,求
的特征向量;
(2)设向量
的特征函数为
,求当
且
时,
的值;
(3)设向量
的特征函数为
,记
,若
在区间
上至少有40个零点,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9987768637e8aa2fe051499381acc3d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c6e203b4b2ddb496ba5e241140051d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7426e927be203401a7ea80f7e35e3c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9d806f27eecf5aee1e75bf35acbcd4c.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f09853b4ab5476d41940f81de7985c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87c5022fcadbebddb7be00d5a8d79c36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a23ec821b5896710d79bfe703cec01a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2f5a04aef63712bb14cd11854ab79b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc8c56d09485b718a85ed23f637e2d77.png)
(3)设向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b059c2d0041f3f0ae98e3995b723c289.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354a3bc958749d6abbcfe8f29bc79773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
您最近一年使用:0次
2024-04-07更新
|
198次组卷
|
2卷引用:天津外国语大学附属河北外国语中学2023-2024学年高一下学期第一次月考数学试题
名校
解题方法
6 .
的内角
的对边分别为
,已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1201e92dfcb05334be336f7cf02dbb72.png)
(1)求
;
(2)若
,
的面积为
,求
的周长.
![](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/1201e92dfcb05334be336f7cf02dbb72.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae7888d643678ea18f83f3237732052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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2024-02-10更新
|
1862次组卷
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7卷引用:天津市武清区黄花店中学2023-2024学年高一下学期第一次形成性练习数学试题
天津市武清区黄花店中学2023-2024学年高一下学期第一次形成性练习数学试题广东省惠州市实验中学2023-2024学年高二下学期3月月考数学试题河北省唐山市开滦第二中学2023-2024学年高一下学期4月月考数学试题安徽省芜湖中华艺术学校2023-2024学年高二下学期3月月考数学试题浙江省杭州高级中学2023-2024学年高二上学期期末考试数学试题(已下线)专题2 解三角形(期中研习室)(已下线)模块三 专题2 解答题分类练 专题3 解三角形(解答题)
解题方法
7 . 在
中,角
所对的边分别为
,已知
,
,
.
(1)求
的值;
(2)求
的值;
(3)求
的值.
![](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/3320a13248a3a1208ff6ee85c9d26f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ae7888d643678ea18f83f3237732052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17d7bb7bde8a6f08ad26d2e86cba4b6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e5d4f93699f8dcffb0e7840ca5597e.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66df1ae0ae26f6662e3cc86b028a4522.png)
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2024-01-25更新
|
635次组卷
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3卷引用:天津市武清区杨村第三中学2023-2024学年高一下学期第一次过程性评价数学试题
天津市武清区杨村第三中学2023-2024学年高一下学期第一次过程性评价数学试题天津市宁河区2024届高三上学期期末数学试题(已下线)专题11.2正弦定理-重难点突破及混淆易错规避(苏教版2019必修第二册)
名校
解题方法
8 . 在
中,角
所对的边分别为
,已知
的面积为
,
.
(1)求
和
的值;
(2)求
的值.
![](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/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78402004b52882f028aec0491c21527d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2c76ba30b82c94f7d8af0fc631059b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dcfa3e340b3976832d450dd4ae7e7a7.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8275122d7c894995175e9e6a40608b3.png)
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2024-01-15更新
|
1026次组卷
|
2卷引用:天津市南开中学2024届高三上学期第三次月考数学试题
名校
解题方法
9 . 在
中,内角
的对边分别为
,
,
,且
,
,
.
(1)求角
及边
的值;
(2)求
的值.
![](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/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/1332569961b96f38eb4ef97402623bd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6773cc1ad3d4c75347890937da43a188.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad6981148775f724d41406cb10d658af.png)
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2024-01-23更新
|
1490次组卷
|
5卷引用:天津市静海区第一中学2023-2024学年高一下学期3月学业能力调研数学试题
名校
解题方法
10 . 在
中,角A,B,C的对边分别为a,b,c,已知
,
.
(1)求:
的值.
(2)求:
的值.
(3)若
,求:
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a0641fc2ab89de7e2b8d6a735a6cc0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5db9740275ec6a2ea3ec4117685b24cb.png)
(1)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e563e032dfdef69b0f357060c27bd4.png)
(2)求:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e6b7ed1c077a9f6cf24c762e269fce1.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42190fdb24c6e918e06eb4a2ebf8856f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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