名校
1 . 已知
中,
,
,若
最短边的长度为
,则最长边的长度是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62e4819a972541ad343589e6eb7f9986.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/324b71a7f5477eb3a32cc31ae3f0a87c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
A.3 | B.8 | C.![]() | D.![]() |
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2024-06-09更新
|
109次组卷
|
2卷引用:吉林省四平市第一高级中学2023-2024学年高二上学期期初验收考试数学试题
名校
解题方法
2 . 在
中,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd1fcfad659e95da18c38e5eb157b8.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d70dc2c20619a4fc12a0cfda59af5b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0334bc85843337c4dfcfdc5c638f9f62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/facd1fcfad659e95da18c38e5eb157b8.png)
您最近一年使用:0次
名校
解题方法
3 . 已知
,
,且
,
均为锐角,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a077ceccea768ed3c664d38d55242fbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06397fbd8b97298fc8bf8f1f42e21d92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3eacde1c42151734fdc60f3001b590de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
4 . 已知
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8a11cc0db511322a51f45af5ce81848.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a009ce821e3add1f56315dd54826307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f6834a22cc57e6dc022c74eae7dac76.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2023-09-30更新
|
1924次组卷
|
6卷引用:甘肃省定西市临洮县2023-2024学年高二上学期暑期学习质量检测数学试题
甘肃省定西市临洮县2023-2024学年高二上学期暑期学习质量检测数学试题(已下线)第03讲 5.2.2同角三角函数的基本关系(2)-【帮课堂】(已下线)第一篇 “必拿”选择前5填空前2 专题11 三角求值【练】天津市第十四中学2023-2024学年高一上学期12月考数学试卷(已下线)四川省成都市第七中学2023-2024学年高一上学期12月月考数学试题(已下线)专题07 任意角、弧度制、三角函数概念及诱导公式1-期末复习重难培优与单元检测(人教A版2019)
名校
5 . 若
,
,并且
,
均为锐角,且
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78ed90572f0533b84c50312bc78e405d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f1035e3272dd97e135723b711f55bee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90df641ab645927ee577e79faf18dcdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc3884b343d76a26b4b85b48987d7064.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
6 . 已知函数
.
(1)当
时,求
的最大值和最小值,以及相应
的值;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3477e11cba3cf321b0b6cacea23bd1d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/772d3bcca18b3cb51ab59344352b141d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b5dcb189a35442798c4d403f728846.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd27275b8314b1217a42fde68d75af90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c3957703bc7a3cf8eb87496a58edf8.png)
您最近一年使用:0次
名校
解题方法
7 . 已知角
是第一象限角,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f8783429be686df75afcd56e847dfa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04e93e6fd267e93472c132814b845c08.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2023-09-13更新
|
858次组卷
|
6卷引用:陕西省汉中市西乡县第一中学2023-2024学年高二上学期开学考试数学试题
陕西省汉中市西乡县第一中学2023-2024学年高二上学期开学考试数学试题内蒙古赤峰市赤峰二中2024届高三上学期10月月考数学(文)试题(已下线)专题13 三角恒等变换压轴题-【常考压轴题】2024年广东省普通高中学业水平合格性考试模拟(二)数学试题(已下线)第五章 三角函数 章末测试(提升)-《一隅三反》(已下线)8.2.1 两角和与差的余弦-【帮课堂】(人教B版2019必修第三册)
名校
8 . 在
中,角
、
、
的对边分别为
,
,
,则
( )
![](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/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190901b1458a127ccb38f9a81d97ba95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/baa8d75a6638e08eedbff8662267da6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e3fc39d2b508cc1cae769a5e7266c0.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-09-13更新
|
632次组卷
|
3卷引用:重庆市西北狼教育联盟2023-2024学年高二上学期开学学业调研数学试题
名校
解题方法
9 . 设
的内角
所对边的长分别是
,且
,
,
.
(1)求a的值;
(2)求
的值.
![](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/fcdb7a488910743dc5c63afb394b87e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4580cc037c0c760c728cdbb74a8154c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2264c134952d41fb9bcb90e6c72c83.png)
(1)求a的值;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf0f2f407087ab2471112b32a3dbd94.png)
您最近一年使用:0次
2023-09-08更新
|
238次组卷
|
2卷引用:湖南师范大学附属中学2023-2024学年高二上学期入学考试数学试题
名校
解题方法
10 . 已知
,且
,
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed53925cace8212e87a4d3bad6463718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1072a11db256b9d6badc4f9034c22c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00f62fa0ca427e543e44995679a0f928.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9da6f152a33ef475161c9e396647225.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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