名校
1 . 已知点
,
是函数
图象上的任意两点,且角
的终边经过点
,若
时,
的最小值为
.
(1)求函数
的解析式;
(2)求函数
的对称中心及在
上的减区间;
(3)若方程
在
内有两个不相同的解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cca23079082fdf9ee66d9abad7d42a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1001979f75db173909ed66d072704459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f01c7b37ef6566a7a16d178ea9ce7fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98076d00a982cbcbcd065ffa4eaf1602.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a233bbb01dc9a3a4f68f6f49ac2b960.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dc191ebded559cc4e6752b9a4e2727c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53496ae2397150370142b5195a1a39c.png)
(3)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fed38cc3fe3fe33926ceb1af472a243e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14f3227e64be6aa4248da802643df6f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2021-12-10更新
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6卷引用:重庆市永川中学校2022-2023学年高一上学期12月月考数学试题