2024·全国·模拟预测
解题方法
1 . 已知
为锐角,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1493224898d63151980c2f2502e03868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895ae23a89391301ee34bfe5b221e99e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024-04-07更新
|
806次组卷
|
4卷引用:高三数学临考冲刺原创卷(一)
(已下线)高三数学临考冲刺原创卷(一)2024届广东省广州市普通高中毕业班冲刺训练题(一)数学试题(已下线)第四章 三角恒等变换章末重点题型复习(2)-同步精品课堂(北师大版2019必修第二册)湖北省黄冈市文海大联考2024届高三下学期临门一卷(三模)数学试题
解题方法
2 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecff5560cd235f6368ea3eaec239f0fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27edeeb2a0a97e14975b35af8b3d2169.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2485f5507d6f020c1275d71b4a2c9677.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
3 . 记
的内角
的对边分别为
,已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f860519b2d038f2110a5a0df52cfcbb4.png)
(1)若
,求
;
(2)若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce7af7c5df749c6fa9bbe87faa72c66d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bba1e7a657ed134e68efd159b606620f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f860519b2d038f2110a5a0df52cfcbb4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18617ef38a8df95ff3d66fa811fd56c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd743cef52911bf275fb737557c6c7b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dcfa3e340b3976832d450dd4ae7e7a7.png)
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解题方法
4 . 在
中,内角A,B,C的对边分别为a,b,c,已知
的面积
.
(1)求
;
(2)若
,
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff5ad9a1014f7e16d43bd1abcca96086.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/809bf8b2fd832a47900a4a90f66c826a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dfa04ed69eb5e36931c076e0cf3f01e.png)
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解题方法
5 . 下列命题正确的是( )
A.![]() |
B.![]() |
C.![]() |
D.![]() |
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名校
解题方法
6 . 若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e338982ac22f4f41216921c7bb7e1a29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd223222a4a53ae2a67e6e42b8712951.png)
A.![]() | B.7 | C.![]() | D.![]() |
您最近一年使用:0次
2024-03-30更新
|
939次组卷
|
2卷引用:吉林省白山市2024届高三第二次模拟考试数学试题
名校
解题方法
7 . 已知
的内角A,B,C的对边分别为a,b,c,且
.
(1)求a的值:
(2)求证:
;
(3)
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e428e7a09732be85c1224e9c8f6a71c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdc8458f250f3b26d6bcd778b4e5abb5.png)
(1)求a的值:
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a39678c84e2d5ae1f14dacdbe728a3.png)
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2024-03-25更新
|
1246次组卷
|
3卷引用:天津市南开区2024届高三下学期质量监测(一)数学试卷
解题方法
8 . 已知
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62585dd701d0601c98760f27ee85b0b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c116893a8c39808622974745e1ca3f78.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
解题方法
9 . 在
中,内角A,B,C所对的边分别a,b,c,其中
,且
.
(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/0c7464d6bf19238cd1cee22add14a1ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52e59a0df8d866088d7ce8f16ae2d01b.png)
(1)求c的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a24a8f5e8fb89381f8add6549170345.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190405cdc8e51d7986bb80277dc0adfd.png)
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解题方法
10 . 已知
,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d394016b9fecac73f38cbc4ff18dee2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320c4027d26d5ab85f9280dc951ea5be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a01962d04032deaa23f672e0a7f2c1de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次