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22-23高一下·福建漳州·期末 查看更多[3]
福建省漳州市2022-2023学年高一下学期期末教学质量检测数学试题(已下线)6.4.3 第2课时 正弦定理【第二课】“上好三节课,做好三套题“高中数学素养晋级之路(已下线)核心考点3 解三角形与实际应用 B提升卷 (高一期末考试必考的10大核心考点)
更新时间:2023-07-16 11:24:09
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【知识点】 正弦定理判定三角形解的个数解读
相似题推荐
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适中
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【推荐1】给出下列命题:
①在△ABC中,若A<B,则
;
②将函数
图象向右平移
个单位,得到函数
的图象;
③在△ABC中,若
,
,∠
,则△ABC必为锐角三角形;
④在同一坐标系中,函数
的图象和函数
的图象有三个公共点;
其中真命题是_______________ (填出所有正确命题的序号).
①在△ABC中,若A<B,则
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/39cf8f1d69cc494d8fe4acaa1f763d4b.png?resizew=85)
②将函数
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/e75d00d882824b449b7eae60989b7b2f.png?resizew=105)
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/00762b4e74454cd889e95e867547eabc.png?resizew=18)
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/3986daa2c2a8435894f51c8abad770a6.png?resizew=69)
③在△ABC中,若
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/304f6ed698c549888196143d672da919.png?resizew=51)
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/c4ed42becf7941bba42eb8c9bf9ff315.png?resizew=52)
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/b1cd12a689324eccaba4b65deaf56413.png?resizew=68)
④在同一坐标系中,函数
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/c029a210905a4f6895875554f28dd921.png?resizew=60)
![](https://img.xkw.com/dksih/QBM/2012/3/13/1570799628492800/1570799633932288/STEM/fdb9e8aab2924fbfa56528210f324c31.png?resizew=41)
其中真命题是
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名校
【推荐2】沈阳二中北校区坐落于风景优美的辉山景区,景区内的一泓碧水蜿蜒形成了一个“秀”字,故称“秀湖”.湖畔有秀湖阁
和临秀亭
两个标志性景点,如图.若为测量隔湖相望的
、
两地之间的距离,某同学任意选定了与
、
不共线的
处,构成
,以下是测量数据的不同方案:
①测量
、
、
;
②测量
、
、
;
③测量
、
、
;
④测量
、
、
.
其中一定能唯一确定
、
两地之间的距离的所有方案的序号是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dff27e6e3602eb9cce33d2b27cb23430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60c4dfebcf8b25db9734fa507213e239.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/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/15c0dbe3c080c4c4636c64803e5c1f76.png)
①测量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
②测量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
③测量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
④测量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3818a2c9919d358b4c3713396093822b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/194741f4d2ae7ee44cafca780361446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/febc9a89d0d1c97b88c0f4acd32b4e67.png)
其中一定能唯一确定
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/16/701a867c-703b-4b30-b27e-d54ab13ce284.png?resizew=166)
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