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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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21-22高三上·北京·期中
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2 . 已知函数
.
(1)求
的单调递增区间;
(2)若
在区间
上的最大值是
,求
的取值范围;
(3)令
,如果曲线
与直线
相邻两个交点间的距离为
,求
的所有可能取值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f734c7bab5a46c252054c0c7c58c1c38.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb37d173605f006df4c51ba63b1841d4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2665cce8924f0d96c37e25ffdc982d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9355031ea0b2dc9cef3777621bc6d38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d74c0570f3ef4fff3e0ba34204f8d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
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3 . 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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4 . 下列命题正确的有( )
A.已知函数![]() ![]() ![]() ![]() ![]() |
B.设![]() ![]() ![]() ![]() |
C.设角![]() ![]() ![]() |
D.使得![]() ![]() |
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