名校
1 . 已知函数
.
(1)若
,求x的取值;
(2)若对于任意
,都有
成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45883a911a321b63aee4fc9be786061e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
(2)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e9c48e36f2c35dd8308029445332aa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3fce0b7ef89dc5ea77542985ee152ff.png)
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名校
2 . 设
.
(1)若
,求出满足条件的角
的解集;
(2)当
时,若存在
使关于
的方程
在
时均有解,求实数c的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875fbccb50c0ada9183ef37262aac370.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a7d6528f2fd79da5ffc9bfbf97b0e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e59409c55e271b690491f42fc1f6b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ffe44aa519044b273b0e48286134406.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/875fbccb50c0ada9183ef37262aac370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31f8e9f49445220aae9d068ea8b1c617.png)
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