名校
解题方法
1 . 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)
您最近一年使用:0次
2020-06-10更新
|
551次组卷
|
8卷引用:宁夏贺兰县第一中学2022-2023学年高一下学期开学检测数学试题(A卷)
名校
2 . 已知函数
,其中
,
.
(1)求函数
的最大值及取得最大值时
的集合;
(2)若方程
在区间
上有两个解
若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c25f1d401fe5fd8748bb7c89751493b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d77fb79fb57506a33384437af81c27d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/692b78aad4968462a9671194b8815b1a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/541289ea62d1da7f0a232f3d21faee9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e202311386b920f5b269ae0fda0c4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a75d5cbdd3238fbd219345b5a28d425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d59e54d23f20ace15d0eb1291ea9b05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a0d4c36f903d22d469472039a22ba5d.png)
您最近一年使用:0次