已知函数
,
.
(1)求函数
的最小正周期及在区间
的最大值和最小值;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15fc0ad86a7fea3040c3fc2124042b00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f6f4c19ed4207100d3d2cabf3f84f83.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c06c544df3d4c99f563d71029131bf.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9331cf1e5d8c0dbd2e56dc703558ff07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bb89c6696d061f1f53639188567a497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84973fca387aaf7de1546ff251c855e2.png)
更新时间:2022-02-04 13:05:20
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适中
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【推荐1】已知函数
,若把
的图象上每个点的横坐标缩短为原来的
倍后,再将图象向右平移
个单位,可以得到
.
(1)求函数
的周期和解析式;
(2)求
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上的值域;
(3)若
在区间
上有5个不同的解,求
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(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b129d5bd03bd4e3895dcb15bec8eedf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8fa4cd0822ad07ef0d2af24428ab9ff.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd6547672c4d5ec67b6a3cf1b0eb0818.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
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【推荐2】已知函数
为奇函数,且相邻两对称轴间的距离为
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(1)求函数
的最小正周期;
(2)将函数
的图象沿
轴方向向右平移
个单位长度,再把横坐标变为原来的
(纵坐标保持不变),得到函数
的图象,求函数
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的值域.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d3b0787c72429b6bce8d9719446ea82.png)
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【推荐1】已知函数
.
(1)求
的最小正周期;
(2)将
的图象向左平移
个单位长度,得到函数
的图象,求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a65875c5582fb949c3e90f71fbbe6eb.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4da2d5964bba41b41a51fbd7050e93e.png)
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【推荐2】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffc91afc92a174bf4a717fb79f542b0d.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f201f6e84279e80b85f394f4d930ed41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545807e6678e74ab15b6a4eaca53d998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6deed9072552d71c57b001cfdf7e7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b63a87545fb8a1913ad16e376d42bd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
【推荐1】如图,
是一块半径为
,圆心角为
的扇形空地.现决定在此空地上修建一个矩形的花坛
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在扇形的弧
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![](https://img.xkw.com/dksih/QBM/2017/9/15/1774641396752384/1775953108860928/STEM/ff58d4c30c0649e4881e33b8c25c9e65.png?resizew=138)
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的面积
与角
之间的函数关系式;
(2)当角
取何值时,矩形
的面积最大?并求出这个最大面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4819c39c281427826e1b3f7a4c2b720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
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![](https://img.xkw.com/dksih/QBM/2017/9/15/1774641396752384/1775953108860928/STEM/ff58d4c30c0649e4881e33b8c25c9e65.png?resizew=138)
(1)写出矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
(2)当角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
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【推荐2】已知向量
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您最近一年使用:0次
【推荐1】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2dbe2ef7c41bd08014879197e0f863.png)
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(1)求
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(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d494adb42ae45db33e82ef0595e111b.png)
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适中
(0.65)
【推荐2】设
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(1)若
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(1)若
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(2)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/584448900e5148e5306d6554f8237f00.png)
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