将函数
的图象向左平移
个单位长度,然后将所得图象上各点的纵坐标不变,横坐标缩小为原来的
,再向上平移
个单位长度,得到
的图象.
(1)求
的单调递减区间;
(2)若
在
上的最大值为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a09926b9ee45adb27db40d91306684d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/488868eadf244bfe444fe39b0747902f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
23-24高三上·陕西咸阳·阶段练习 查看更多[4]
陕西省咸阳市永寿县中学2023-2024学年高三上学期第一次考试文科数学试题(已下线)专题14 三角函数的图象与性质压轴题-【常考压轴题】江西省宜春市丰城中学2023-2024学年高一创新班上学期期中数学试题山西省介休市第一中学校2022-2023学年高二上学期开学考试数学试题
更新时间:2023-09-19 17:16:30
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解答题-问答题
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适中
(0.65)
解题方法
【推荐1】设函数
,其中
,
.
(1)求
的周期及单调递减区间;
(2)若关于
的不等式
在
上有解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e7b2150ed88d3ffdec3d142617eacf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36253779e1cfe0eba84ca7e7711c31c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b7a921ba197e6bc438e51e9f1cf8f50.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0414e76a224e21857eac93b9ad2f0d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92b42048481d02f1112bbcd877790334.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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|
适中
(0.65)
解题方法
【推荐2】设函数
(
)在
处取最大值.
(1)求
的值;
(2)在
中,
分别是角
的对边.已知
,
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f6f8192bf5a11246b23bc5f7e26ee6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb61a448347a3f8c1f126d1c00730cc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17c3319647314c3b6d82958a909acd2a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fadd2e6f0aa16c2c466c904474ffc79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a3c442579603164f3fc19458677d307.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/874adf20cb27b7a20a1f4aafd0920325.png)
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您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐3】设函数
.
(1)求函数
的最小正周期和单调递增区间;
(2)当
时,
的最小值为1,求函数
的最大值及对应的
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217af00bba18a54b5fc6bd6e9ddc2188.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,
(其中
,
,
)的图象与
轴的交点中,相邻两个交点之间的距离为
,且图象上一个最高点为
.
(1)求函数
的解析式;
(2)先把函数
的图象向左平移
个单位长度,然后再把所得图象上各点的横坐标伸长到原来的2倍(纵坐标不变),得到函数
的图象,若总存在
,使得不等式
成立,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93778ac16acb542c259b9c4c49b410b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cae7bdbc3dca4c8e4a06f4bea3a7f20c.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)先把函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4f72ab73187a21c812c28a9f3a8be96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe8c88b4e259843fe8a35a4461b2a494.png)
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适中
(0.65)
【推荐2】已知函数
的最小正周期为4π.
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的图象的对称轴方程;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9364dfe9fecffd72556c30d0afd9059c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)将
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适中
(0.65)
【推荐3】已知函数
的部分图象如图所示.
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494654558937088/2494925115613184/STEM/db8c2a95-d773-4f05-bf5a-20ea35323f30.png?resizew=146)
(1)求
的解析式.
(2)将函数
的图象上所有点的纵坐标不变,横坐标缩短为原来的
,再将所得函数图象向右平移
个单位长度,得到函数
的图象,求
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82e4313c558d2a1c9387f4f8bb4428df.png)
![](https://img.xkw.com/dksih/QBM/2020/6/28/2494654558937088/2494925115613184/STEM/db8c2a95-d773-4f05-bf5a-20ea35323f30.png?resizew=146)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
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您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】已知函数
.
(1)写出函数
的最小正周期及最大值;
(2)求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b0d0d41582e3d50eb68046aa53eace4.png)
(1)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
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适中
(0.65)
【推荐2】已知函数
.
(1)求函数
的单调递增区间;
(2)记
的内角
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、
所对的边长分别为
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、
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,
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(1)求函数
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(2)记
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95f2d59590aa4817f957ccf6dc23f4d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9384e9035d86d3cf2e5c8b6966f29de0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8120119749d4bc28067e73fca7d46cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93a5801e8be81aae66c47cc058fe370c.png)
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