名校
1 . 已知
是锐角,
,则
的值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e288596fa3811dd2c17bded60e82e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc36fe3703f468ce44a2068324f383dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63fe57d4fbae536de2e641d9d349fcf1.png)
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2 . 已知
为第二象限角,且满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc9667998cc514aa0c1907612234db3.png)
___
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57c402a6a52aa6f36efe427ff7c55c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bc9667998cc514aa0c1907612234db3.png)
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23-24高一上·江苏南通·阶段练习
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3 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32e1cc0922dfd919f8ec8831da2cee5.png)
________ ,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fe8cb9c5c68c7a506fbe4d51aaed357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e32e1cc0922dfd919f8ec8831da2cee5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd3fc1f577e97c5659123f4acfb46a2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
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2023-12-08更新
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1524次组卷
|
7卷引用:江苏省淮安市楚州中学2023-2024学年高一上学期12月教学质量调研数学试题
江苏省淮安市楚州中学2023-2024学年高一上学期12月教学质量调研数学试题(已下线)江苏省南通市如皋市2023-2024学年高一上学期12月月考数学试题山东省德州市夏津第一中学2023-2024学年高一上学期12月月考数学试题广东省江门市鹤山市第一中学2023-2024学年高一上学期期末复习数学试题(三角函数)江苏省南通市如皋市2023-2024学年高一上学期期中教学质量调研数学试题(已下线)专题05 三角函数公式及三角函数性质的综合应用 (2)-【寒假自学课】(人教A版2019)(已下线)【第二练】5.2.2同角三角函数的基本关系
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4 . 已知在
中,
,
,则
边上的高为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6cc176bbf7f69d57bd8ffc549341808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f08273d339dc5ddbb89aa67bb8205e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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5 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d42310bcf846c61426d721aef75bed6.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47acf7f13759247cfc4875edbe632dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d42310bcf846c61426d721aef75bed6.png)
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2023-10-13更新
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743次组卷
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4卷引用:江苏省淮安市马坝高级中学2023-2024学年高三上学期10月学情调研测试数学试题
江苏省淮安市马坝高级中学2023-2024学年高三上学期10月学情调研测试数学试题江苏省连云港市2023-2024学年高三上学期教学质量调研(一)数学试题(已下线)江苏省南通市如皋市2023-2024学年高三上学期教学质量调研(一)数学试题江苏省盐城市实验高级中学2024届高三上学期第6次质量检测数学试题
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6 . 已知
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0277154fc2f398a18762f17bb394d18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9bc052a11cf1a01445992672dde2836.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc903c19f7b3b0aa58cdb0cdb7b062a0.png)
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2024-01-24更新
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424次组卷
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6卷引用:江苏省金湖中学、洪泽中学等六校2021-2022学年高一下学期期中大联考数学试题
解题方法
7 . 已知
,
是方程
的两根,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00986abe09970490096a108d7b11af20.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f35152720e43c6403d43bef47c0377d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d389e45638223ee9591c067b4ff1a42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00986abe09970490096a108d7b11af20.png)
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8 . 1626年,阿贝尔特格洛德最早推出简写的三角符号:
,
,
(正割),1675年,英国人奥屈特最早推出余下的简写三角符号:
、
、
(余割),但直到1748年,经过数学家欧拉的引用后,才逐渐通用起来,其中
,
.若
,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13bdec75fbee7f3f88122d98375d6ee1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c16ea416dd171c5279967976f33c9840.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7a79f5d9917b83ea4eb39051657b2bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1063785f0af27d268e8c1e05a8c7b38e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3e1db4e5eecb3192da477ec56d9f47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78a26ecd7e5badf4244b75176cfc43e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52e60f17720d52cbdb43013d20ed899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d563bb17d589b13b177de6cfa63186b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b06f37bd322af6e273ceb66bac49a716.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41552f4b644f0a51c372da5802c9717c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e304cf018473bb54edb166fcd6502b.png)
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2023-06-20更新
|
164次组卷
|
2卷引用:江苏省淮安市楚州中学、新马中学2022-2023学年高一下学期期中联考数学试题
解题方法
9 .
中,已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b939bf0591883ab80d9e58a03718c79.png)
__________ ,若将前面的条件中的
改为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185e5d6f5fc7ab17618117b276a70520.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/715806fe144cfc5100da7ada9ddad062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b939bf0591883ab80d9e58a03718c79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7e902cbd3c415b7befaf9816190521.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e90fb24ff0438c6384287a8b51f01e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/185e5d6f5fc7ab17618117b276a70520.png)
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10 . 若
,且α为锐角,则
=______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5ebf815ebb8ddd116eb2dc21e529c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14cae94fd49f55959f478cb04ec1112e.png)
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2023-02-24更新
|
812次组卷
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4卷引用:江苏省淮阴中学教育集团涟水滨河高级中学2022-2023学年高一下学期第一次学情调研数学试题