已知函数
.
(1)求
的最小正周期
(2)求
在区间
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35014180a2cea760216013272d086e32.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/880f8bd9f5d4e3e31f7b230b0c6f8a2d.png)
更新时间:2023-03-20 23:25:11
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适中
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【推荐1】已知函数
,
,
的部分图像如图所示,P,Q分别是该图像相邻的最高点和最低点,点P的坐标是
,点R的坐标是
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/9f3bb236-362c-43ac-923b-ee1e9042711a.png?resizew=211)
(1)求
的最小正周期与
的值;
(2)求A的值,并写出函数
的单调递增区间;
(3)若函数
,请研究函数
的奇偶性、最小正周期、单调区间、最大最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69dd8940c1bbc35586c01c1bf1f441c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93778ac16acb542c259b9c4c49b410b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79c8cfa6f9004352171f5b1fde939ebb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94308815a91164b6c0b36815938f4a7c.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/9/14/9f3bb236-362c-43ac-923b-ee1e9042711a.png?resizew=211)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)求A的值,并写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653115d875aacaf84574fcb763e41a7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
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适中
(0.65)
解题方法
【推荐2】已知向量
,
,且函数
.
(1)求函数
在
时的值域;
(2)设
是第一象限角,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1629479ba011646e56a2c9c9f95201e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd7f9c2e2c19eaaef8b9aa745d92b825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2104745f6548c40d42d046514e78df46.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a34b4bf4bba566959635a7982cec6ae.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bd85cdc96850257a97bb6f3df896ed6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a35714ad640fae69ab4bfbe9a77c3f4e.png)
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(0.65)
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【推荐3】已知
为
的三个内角,向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54a8cee8be68d828dace278ed7713de.png)
与
共线,且
·.
(Ⅰ)求角
的大小;
(Ⅱ)求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38335830b93ac4d99c28a8e209eecb3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b3fb2da3909e643ef238b8d0ac559e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c54a8cee8be68d828dace278ed7713de.png)
与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16c4b1138ed8d34c9ed65e3f47913709.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca18c907a9175a90b151a78af8a303d2.png)
(Ⅰ)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(Ⅱ)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d4f4962e233bbb7e7dde21d64a1450.png)
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适中
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【推荐1】已知函数
.
求
的最小正周期和单调递增区间;
求
在区间
上的最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8c37d488e3705557726ba2fb5b77e0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a9414f40d5f176d4a89fa264eaa703a.png)
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解题方法
【推荐2】已知函数
.
(1)求
的最小正周期和单调减区间;
(2)若
,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd07187d7e9a6912602b23633b71cfdf.png)
(1)求
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(2)若
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解答题-问答题
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适中
(0.65)
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解题方法
【推荐1】函数
.
(1)求函数
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(2)求
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(3)求函数
的最小正周期及其图象的所有对称轴的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92aabe84efc5af7f4e8eb5b346e9bbee.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a37c17c139a6e995fb23547c8864d5.png)
(3)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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适中
(0.65)
【推荐2】已知
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(1)求函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c20acf30287bc10566ec41e68748da8.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360b25bb26627cd568977ee81d97fe36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/361b06700a30635c5a9ac95209bbfeeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f751d18645f7e34110e7591b6f942760.png)
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