名校
解题方法
1 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82a355281002ce7d471d83e59da0454.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d176af0a00680162d71e477f0a18d694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82a355281002ce7d471d83e59da0454.png)
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2 . 在
中,
是
的中点,
,
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9c3ec174b1ce835cc8737ff6ce57e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97f763c492745451df3c4dbcc9fcbfe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22b02f6c8636152aeb62d191251e931.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c26a46e7879436d532af3f4b6e258a81.png)
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3 . 已知复数
的实部为0,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982c2cd8fd33539bd313fe3ea373e6c0.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0d037cbc7584aefec1e2ffe58d0971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/982c2cd8fd33539bd313fe3ea373e6c0.png)
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2024-06-07更新
|
1786次组卷
|
5卷引用:广东省广州市2024届普通高中毕业班综合测试(二)广州二模数学试卷
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4 . 一般地,对任意角
,在平面直角坐标系中,设
的终边上异于原点的任意一点P的坐标为
,它与原点的距离是
.我们规定:比值
,
,
分别叫做角
的余切、余割、正割,分别记作
,
,
,即
,
,
,把
,
,
分别叫做余切函数、余割函数、正割函数.
(1)已知
,则
的最大值为_______ ;
(2)设
,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82a79a33a83a7ba57a34b5093d1d1d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e7bf9200b351a259ddfc6c0266129d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa2d7c084731df9cdabf1f0af121e3e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fee1e0f6c44b3027d0d6f8d9396f209.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18d494c34104f679bdbea537164f1907.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e609ecb22257c1ca2fe78b1dc2e62141.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f48bd75362790c061d70f80de8febc3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b57070a05279ad5e576d13fb9c1bef2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851b7eec8ee522611f6b96a60ab9fc63.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147f65043356b475c5c2bba102958807.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd5cac6f59b3e1405a3b64d13c88e8a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175c64c2a2393743bde92b3e46df42cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7688d35e68414fa995babd7437e678b.png)
(1)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba1cf8cc0ca8fbbc8863fb416e25730f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bde963bde77dedd5e9859b5a4f5e49e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
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5 . 已知
中,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42acd3ee01d9f843a8579ffb0b7d9d82.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69d2eec3b3ef5a2a660315db9f0feb99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42acd3ee01d9f843a8579ffb0b7d9d82.png)
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2024-05-29更新
|
827次组卷
|
2卷引用:广东省江门市新会第一中学2024届高三下学期高考热身考试数学试题
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解题方法
6 . 已知
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47dfdd0d44911067dd493f8b3e22df6.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d5c74d7422aa12622e516d6ecc25177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47dfdd0d44911067dd493f8b3e22df6.png)
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解题方法
7 . 在
中,若
,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72511f149a1b13af02d0e1421d3a63a5.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cb6362bc99fba4bcd7331db9aee922c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9498c3fe203b8c0bb7dc4453ccfac2de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72511f149a1b13af02d0e1421d3a63a5.png)
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2024-04-10更新
|
508次组卷
|
3卷引用:广东省肇庆市第一中学2023-2024学年高一下学期期中考试数学试题
广东省肇庆市第一中学2023-2024学年高一下学期期中考试数学试题四川省成都市石室蜀都中学2023-2024学年高一下学期3月月考数学试题(已下线)专题04 三角恒等变换-期末考点大串讲(人教B版2019必修第三册)
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解题方法
8 . 已知为锐角,若
,则
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2024-03-23更新
|
747次组卷
|
2卷引用:广东省惠州市惠阳区第一中学高中部2023-2024学年高一下学期开学摸底考试数学试题
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解题方法
9 . 若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e7cd4e866f7e0e38c51a799b087ace.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d42e69e4164e7632da0ca05d1dfe128e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66e7cd4e866f7e0e38c51a799b087ace.png)
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2024-03-12更新
|
1035次组卷
|
4卷引用:广东省江门市新会第一中学2023-2024学年高一下学期期中考试数学试题
解题方法
10 . 已知双曲线
的离心率为
,则其两条渐近线所成的锐角的余弦值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bf4fd84818abac17a9d21237ac5ce5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
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