在
中,角
所对应的边分别为
设
,
,若
,则
为( )
![](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/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247b0bd912932e129f051d3beee2df2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3724d7f687323a9161732c9c3224b6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/242b0af4f33851007b2052508dd3790e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
20-21高一下·黑龙江绥化·期末 查看更多[2]
更新时间:2021-07-20 08:07:24
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单选题
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较易
(0.85)
【推荐1】若
内角A、B、C所对的边分别为a、b、c,且
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acf3614d80bff70a917cd613e312a1df.png)
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A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
单选题
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较易
(0.85)
解题方法
【推荐2】在
中,角
,
,
的对边分别为
,
,
,若
,
,
,则
的面积
( )
![](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/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbf530176292c760d6c2fbc9a364f2fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/256b633bc67729ae23268fc17117a0f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447a9718a502491b47072ce013c26a2f.png)
A.![]() | B.![]() | C.1 | D.![]() |
您最近一年使用:0次
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解题方法
【推荐1】已知向量
与向量
平行,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/016e4d15ab8f5359f6aa3b42674b0c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b56f7b7331d7bc66debf192e0f041f3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c46abfd17e7646c9f75d96cb662edd3.png)
A.![]() | B.![]() | C.1 | D.2 |
您最近一年使用:0次
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【推荐2】已知向量
,
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e8b5dea56939af6601563e5260348c.png)
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa78b97a6d468ffab4e6aafa9d28551.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f01c2e813980dc41e4a23c5b34de463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e8b5dea56939af6601563e5260348c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acacf9d50810f5de40c47ea681f28b6d.png)
A.3 | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次