名校
1 . 化简
的结果为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f762828e6e91ec1db126a2638993f0a.png)
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名校
2 . 在
中,已知
,
,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/264381eddf150479287e20be0007ef90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd5d80eb84c4a126dbae32abc10ce536.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c885e8032706feed854495e0f608aa04.png)
A.![]() | B.![]() | C.![]() ![]() | D.以上答案都不对 |
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2020-01-17更新
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299次组卷
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2卷引用:上海市黄浦区向明中学2017-2018学年高三上学期8月月考数学试题
名校
3 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13ad59948f7ca088520f33a2ef40bb9.png)
,求
、
的值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13ad59948f7ca088520f33a2ef40bb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c5398371c28fc34713f2140bc9422d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0f04c7c99a24980dc13b64b2523bf15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6f90c4754e6b6fc862d72943fb35569.png)
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4 . 如图,
、
是单位圆
上的点,
是单位圆与
轴正半轴的交点,
点的坐标为
,三角形
为等边三角形,则
点的坐标是____________
![](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/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bfd8da8cf8cfacb41ba262bfe0d77cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a77343ecde1c2665df291761b6563.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/27/127902c3-f0f4-404b-b472-2252d680e583.png?resizew=168)
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5 . 如图,某城市有一矩形街心广场
,如图.其中
百米,
百米.现将在其内部挖掘一个三角形水池
种植荷花,其中点
在
边上,点
在
边上,要求
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/6b1edc80-8bfc-4f73-84a6-2bf6ad811829.png?resizew=165)
(1)若
百米,判断
是否符合要求,并说明理由;
(2)设
,写出
面积的
关于
的表达式,并求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2c15801fee2405573677484f5dcfa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f8eeeea1c9652cacce976f8129cf520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193b5b41994c2a4dfa5bb0bc984061cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaee3be5f7547e5eed8757128e684108.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/6b1edc80-8bfc-4f73-84a6-2bf6ad811829.png?resizew=165)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0d9733e4506622a4b50c4d8f61014c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c043c1a8696b06caf7d4bcd0d81e8c.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41f2cfcf7a2a5de2ee9b8dea55c15f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c043c1a8696b06caf7d4bcd0d81e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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2020-01-02更新
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1321次组卷
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9卷引用:上海市嘉定区、长宁、金山区2019-2020学年高三上学期期末数学试题
上海市嘉定区、长宁、金山区2019-2020学年高三上学期期末数学试题2020届上海市长宁嘉定金山高三一模数学试题2020届上海市嘉定区高三一模数学试题(已下线)考点03 三角函数与解三角形-2021年高考数学【热点·重点·难点】专练(上海专用)江西省崇义中学2020-2021学年高一上学期期中考试数学试题(A卷)(已下线)上海市华东师范大学第二附属中学2021-2022学年高一下学期3月月考数学试题上海市控江中学2021-2022学年高一下学期期中数学试题上海市闵行中学2022届高三下学期开学考试数学试题上海市浦东新区2023-2024学年高一下学期期中教学质量检测数学试题
名校
6 . △ABC中,
则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c578ea140db1468d436790d1b6c4109a.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c65197c436ccf3549e169b897f5aa1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c578ea140db1468d436790d1b6c4109a.png)
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2020-01-01更新
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213次组卷
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5卷引用:上海市青浦高级中学2018-2019学年高一下学期3月质量检测数学试题
上海市青浦高级中学2018-2019学年高一下学期3月质量检测数学试题(已下线)第6章三角(能力提升)-2020-2021学年高一数学下册单元测试定心卷(沪教版2020必修第二册)(已下线)高一期末押题02-2020-2021学年高一数学下学期期末专项复习(沪教版2020)(已下线)期中全真模拟试卷(5)-2020-2021学年高一数学下册期中期末考试高分直通车(沪教版2020必修第二册)(已下线)第20讲 期末复习(练习)提升卷-【教育机构专用】2021年春季高一数学辅导讲义(沪教版2020必修第二册)
名校
7 . 已知
,函数
.
(1)若
,用列举法表示
;
(2)求函数
的单调递增区间以及当函数取得最大值时,
和
的夹角
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/065e504e31c3f1898785b8d452554651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc1525aee9019a25cf71dc6054ec1ce.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4570234b62d2f548b24acad5434354.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
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2019-12-16更新
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559次组卷
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3卷引用:上海市黄浦区大同中学2018-2019学年高三上学期12月月考数学试题
名校
8 . 已知
均为锐角.
(1)求
的值;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/058d23f0c61f7cdc0ac5b5d2c2b46ef5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8f798a9af75a091a8be0b71f2038260.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5438613cda89232a531a69da49dee747.png)
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2019-12-07更新
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591次组卷
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2卷引用:上海市延安中学2018-2019学年高三上学期期中数学试题
9 . 在
中,已知
,则
=______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d328a2283875871a24c18ed20a49dcc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6402f1010e94be78552ed4c45548b1b8.png)
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2019-12-07更新
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423次组卷
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2卷引用:上海市宝山区罗店中学2017-2018学年高一下学期3月月考数学试题
名校
10 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9dca5da85c202b58c7aaf3b935c158.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab6c8ea9521477153b703a1fa9008df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae9dca5da85c202b58c7aaf3b935c158.png)
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2019-12-06更新
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3卷引用:上海市朱家角中学2018-2019学年高三上学期期中数学试题