1 . 已知
的内角
的对边分别为
,已知
,锐角C满足
,则( )
![](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/979420edfa7cf568fab8ee467e767076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0684ba1cf534af3def9ea9277d6572.png)
A.![]() ![]() | B.![]() |
C.![]() | D.![]() |
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2023-07-10更新
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9卷引用:广西玉林市第十一中学2023-2024学年高二上学期10月月考数学试题
解题方法
2 . 若
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a81b248771e3551af17cbbd1904e6a66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/612fd36aeb83099c4644c076db691612.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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4卷引用:广西梧州市新高考教研联盟2023-2024学年高二上学期期中考试数学试题
广西梧州市新高考教研联盟2023-2024学年高二上学期期中考试数学试题广西桂林市、崇左市2023届高三联考数学(理)模拟试题(已下线)模块四 三角函数、平面向量与解三角形-2(已下线)专题四 三角函数-1
3 . 已知
,
,且
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a4a10e6ebab13cba83dec9d6662fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e1cc6b334edcd3aad471721f9b4d1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9a1ffc6cab1ae3618ea4a2b2f2350.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8647b84bfbc7d827f56be74888b9fdb6.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-11-01更新
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2卷引用:广西百色市平果市铝城中学2023-2024学年高二上学期期中复习数学试题(一)