解题方法
1 . 化简,求值:
(Ⅰ)已知
,求
;
(Ⅱ)
(Ⅰ)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9576aa8eef2c2c85b8c3bc071e53c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc0544e0f5af6923ff49bd5ae08b13b.png)
(Ⅱ)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b34f3e9b75bd2cc5101b6656951addc.png)
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名校
解题方法
2 . 如图,在平面坐标系
中,第二象限角
的终边与单位圆交于点
,且点
的纵坐标为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/0cec23df-f7f5-44ab-8f44-f7810410fb46.png?resizew=154)
(1)求
,
,
的值;
(2)先化简再求值:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7294f5ae2a24ff42e84cd9773b2a7287.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/23/0cec23df-f7f5-44ab-8f44-f7810410fb46.png?resizew=154)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d66c03d4ca06819a6ce7fc8ea6de0f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cc9750c313ee972124cb62c4a6fb7ea.png)
(2)先化简再求值:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee2d28bfcd18f4d4d871440fc31e7e34.png)
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2020-06-10更新
|
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8卷引用:江苏省无锡市江阴市成化高级中学2020-2021学年高一上学期12月月考数学试题
名校
3 . 已知
,
是函数
的两个相邻的零点.
(1)求
的值;
(2)若对任意
,都有
,求实数
的取值范围.
(3)若关于
的方程
在
上有两个不同的解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2146fff84b98765ba973d5278de3ccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/673f2089d8119934a2c5b8da334f632a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fae6644342cc4c635d31a8c3a05610f.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5df5670e50d77fde176e41506a725e32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2b520691b6a1c996d416fdad0700d64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98198aca4bb020d3de6a514a662821af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-09-15更新
|
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5卷引用:江苏省南通市如皋市2020-2021学年高一下学期期中数学试题
(已下线)江苏省南通市如皋市2020-2021学年高一下学期期中数学试题江西省新余市2019-2020学年高一下学期期末考试数学(文科)试题(已下线)3.2 简单的三角恒等变换-2020-2021学年高一数学课时同步练(人教A版必修4)内蒙古自治区呼和浩特市内蒙古师范大学附属中学2022-2023学年高一下学期6月月考数学试题河南省郑州市宇华实验学校2023-2024学年高一下学期3月月考数学试题
4 . 已知函数
,
.
(1)作出函数
的图象;
(2)求方程
的解.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb1152dac89a5550489f036c7c59fc72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37440b57fe2ffc13f2a873e38f55d29b.png)
(1)作出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e1a4f3d0f4f608ea4e8481843d19429.png)
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2020-01-14更新
|
619次组卷
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2卷引用:江苏省盐城市滨海县2019-2020学年高一上学期期末数学试题