名校
1 . 已知函数
,角
的终边经过点
.若
是
的图象上任意两点,且当
时,
的最小值为
.
(1)求
或
的值;
(2)求函数
在
上的单调递减区间;
(3)当
时,不等式
恒成立,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/151a070c36d12ae0a9b64dc7dae21b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10735500d5bc4b13a0db06b722e47a97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b787590a4913accea4e052ef64ff4e4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e5ab2483d2b1a454b28774c3d4b8240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c875c55f2117fb4572265601f096895a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d88591679796c52024d11c4de641bdb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4908e3b4e523c042732ccb7c215aac99.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf8b900c51551c55f67fe1b972518d45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a24c05e96907b76cf4d59c9752e8f8f1.png)
![](https://img.xkw.com/dksih/QBM/2018/7/24/1995442268815360/2000370369904640/STEM/854c6cedc4244598a4f353968522280d.png?resizew=17)
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2018-07-31更新
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641次组卷
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4卷引用:福建省永春第一中学2022-2023学年高一下学期3月月考检测数学试题