名校
解题方法
1 . 在
中,角A,B,C所对的边分别为a,b,c,且满足
,
.
(1)求证:
;
(2)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/988b7e964e313579ab8869d67d5be007.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c6fdc45e193a71f67399d7a9f3320c0.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de371aef17ea71040f165f9b7f653799.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1311f32edf13f8caee5edb03f24a7ba.png)
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24-25高一上·全国·课后作业
2 . 求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0da7b543fb56397ad57576e3e5ba0f87.png)
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2024高一下·上海·专题练习
名校
3 . 对于集合
和常数
,定义:
为集合
相对
的“余弦方差”.
(1)若集合
,
,求集合
相对
的“余弦方差”;
(2)求证:集合
,相对任何常数
的“余弦方差”是一个与
无关的定值,并求此定值;
(3)若集合
,
,相对任何常数
的“余弦方差”是一个与
无关的定值,求出
、
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0e94af231799820b1b50e80dd38b869.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4438bae1705c0f26beddf41322c087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89087b5832048b3f67075371253e5fb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4438bae1705c0f26beddf41322c087.png)
(1)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b9f7dba284b1f15b1660db9875bdada.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35272ddbd63d2485769020d9839445f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4438bae1705c0f26beddf41322c087.png)
(2)求证:集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a8f4e2a2972da8e72c7aa3e8ce91d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4438bae1705c0f26beddf41322c087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4438bae1705c0f26beddf41322c087.png)
(3)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5dfea362ad666e61cf04e2768215d2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a45cb3486e8835fa7b848e51b53043fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4438bae1705c0f26beddf41322c087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a4438bae1705c0f26beddf41322c087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
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2024-03-11更新
|
543次组卷
|
8卷引用:第六章 三角(压轴题专练)-单元速记·巧练(沪教版2020必修第二册)
(已下线)第六章 三角(压轴题专练)-单元速记·巧练(沪教版2020必修第二册)(已下线)第八章:向量的数量积与三角恒等变换章末重点题型复习(2)-同步精品课堂(人教B版2019必修第三册)广东省惠州市第一中学2023-2024学年高一下学期第一次阶段考试数学试题上海民办南模中学2023-2024学年高一下学期期中考试数学试卷(已下线)专题06 期末解答压轴题-《期末真题分类汇编》(上海专用)(已下线)专题04 三角函数恒等变形综合大题归类 -期末考点大串讲(苏教版(2019))(已下线)第10章 三角恒等变换 单元综合测试(难点)-《重难点题型·高分突破》(苏教版2019必修第二册)山东省青岛第五十八中学2023-2024学年高一下学期3月月考数学试卷
2023高一上·全国·专题练习
4 . 求证:
=-1.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b395a4143c6963a36f62b4261b9fe818.png)
您最近一年使用:0次
2023高一上·全国·专题练习
5 . (1)求证:
=
;
(2)求证:
=-tan θ.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b6aadc2a7fc75b826fc7cc907b715a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae848d24d6116ec9ef67a0a43866f98e.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4703104081e4224f5b089bd7f035af28.png)
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名校
6 . 如果函数
的导数
,可记为
.若
,则
表示曲线
,直线
以及
轴围成的“曲边梯形”的面积.
(1)若
,且
,求
;
(2)已知
,证明:
,并解释其几何意义;
(3)证明:
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83d4d758bac9a7272c1d40a5ea4176c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edd8f5b33be6db5be0833f1801bd7a46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c6a5e6776e205fb09d8a689e1638947.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/436ff3cf58de28b55f7605675a47d818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ed0afb829f4d5c61ce89a556376d93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a0dc2a031743126b8b4fabb843a55bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bc282dae4ac9132196ac5d13f63b901.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c38abf9dbef1c45d9fd8143798fa0ea.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e59176a49cf2e21c94cf550888de88c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a37a59558292ad6b3d0978bfd7484990.png)
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2024-02-20更新
|
2427次组卷
|
7卷引用:压轴题函数与导数新定义题(九省联考第19题模式)练
(已下线)压轴题函数与导数新定义题(九省联考第19题模式)练(已下线)微考点2-5 新高考新试卷结构19题压轴题新定义导数试题分类汇编湖北省黄冈市浠水县第一中学2024届高三下学期第三次高考模拟数学试题(已下线)第5套 新高考全真模拟卷(二模重组)(已下线)压轴题01集合新定义、函数与导数13题型汇总-2重庆市第八中学校2023-2024学年高三下学期入学适应性考试数学试题湖北省十一校2024届高三联考考后提升数学模拟训练一
2024高一上·全国·专题练习
解题方法
7 . 证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b23e19e3198079f13eacc17ac53c47d9.png)
您最近一年使用:0次
2024·全国·模拟预测
8 . 在
中,已知
.
(1)若
,证明:
为直角三角形;
(2)若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2d976ac6d700470d008e8f0415140b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f2f2d7c81cb44416bcdf59419637682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/500d68f2678989a5ce7431cfd51b019d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
您最近一年使用:0次
2023高三上·全国·专题练习
解题方法
9 . 如图.在平面四边形
中,
.设
,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a50cfef119ed7a32f22546355225e60a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e062b576227465b4512dd653c3f16d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97b75a84c919154f4fcf4527b9af0f93.png)
![](https://img.xkw.com/dksih/QBM/2023/12/19/3392566498025472/3392592825294848/STEM/4d3e01fd2b6042c58098dfd1312316fd.png?resizew=125)
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解题方法
10 . 化简或证明:
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec886facc8039c1800fc25f8ce289d1.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5acc462c6d1f331bdd3e306934d39692.png)
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