已知
的内角
满足
,面积满足
,记
分别为
所对的边,则下列不等式成立的是( )
![](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/b2af4582d813f9d5e426bf1b1613d973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13d4d91046d6cef4258c09c40c8567f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
2024高三·全国·专题练习 查看更多[1]
(已下线)专题08 三角函数选择题(理科)-2
更新时间:2024-05-14 16:10:02
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相似题推荐
单选题
|
适中
(0.65)
名校
【推荐1】如图,已知两个单位向量
和向量
与
的夹角为
,且
与
的夹角为
,若
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cc2294ee512fa1ee5f14ad65a24a499.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f155cd4bc7ad8698ba8d091028e2757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4f605ec0729ce6d72237ad662a06862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc9656d8286c4d6fa309d6ae347c89e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa0422c9e5a0e9150020c1142b3b4c53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef8337706c550bc095d7a2bd872221a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1e5fa72f2878b476bc57f0df12d6555.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe792bb8d6b78a34fb2b48d7af321bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edff1881635893293dd411ead8194aca.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/11/17/31079eec-fd82-4231-a989-e1266d71c198.png?resizew=127)
A.![]() | B.![]() | C.1 | D.![]() |
您最近一年使用:0次
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适中
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解题方法
【推荐2】在
中,内角
所对的边分别为
,且
,则下列结论正确的是( )
![](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/578a4dd452373863338592ae353eae17.png)
A.![]() | B.若a=7,b=8,则![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
单选题
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适中
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名校
解题方法
【推荐1】已知对于任意角
,均有公式
,设
的内角
满足
,面积
满足
,角
的对边分别为
.给出下列四个结论:
①
;②
;③
;④
.
其中正确结论的序号是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa2525a29cf694eff817bc2d1e613939.png)
![](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/b2af4582d813f9d5e426bf1b1613d973.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78bbcb52d0120d28c603cba93c0b5764.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee145450df3da9c9be6b6da98b9fb2cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6410ef6ec0f23270db6a9fdb6224c2ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4dbef8af5433e4119c0c1ef497ad4cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66244ea0c7b2918ea75a759d5df5f472.png)
其中正确结论的序号是( )
A.②③ | B.①②④ | C.①③④ | D.①②③④ |
您最近一年使用:0次
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解题方法
【推荐2】已知
内角A、B、C所对的边分别为a、b、c面积为S,若
,
,则
的形状是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af30a92eda72d7b4daf2dc17c0c078af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53f7b7c533a731d15b62050fe353118a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
A.钝角三角形 | B.直角三角形 | C.正三角形 | D.等腰直角三角形 |
您最近一年使用:0次