已知函数
.
(1) 把
的图象上每一点的纵坐标变为原来的
倍,再将横坐标向右平移
个单位,可得
图象,求
,
的值;
(2) 若对任意实数
和任意
,恒有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8426a89cdca09e65a4675589a8af2d75.png)
(1) 把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f6bfdb24ecf5da863405c2b40936ff9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2eaf693219fef9a0e643cd8d01135b20.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
(2) 若对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c41c40aad51a67c605630aa352ecf995.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78be35345bd5083a216690b25017b8b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2019-01-16 16:27:12
|
相似题推荐
解答题-证明题
|
较难
(0.4)
名校
【推荐1】设函数
,
.
(1)若函数
在
处的切线的斜率为
.
①求实数
的值;
②求证:
存在唯一极小值点
且
.
(2)当
时,若
在
上存在零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe3fbaf662d1e5089005bbfa5fac773.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2441a007eff36e7a97cb054782f4c5cd.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c9f8845aa2b51c460f2d798c9f62fa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
①求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
②求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09fd7520e2d6cdc0d63d4a293920420.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2441a007eff36e7a97cb054782f4c5cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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解答题-作图题
|
较难
(0.4)
【推荐2】已知向量![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9f713beb35041d1480cd651a9f18bc.png)
,设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff04c1e4068aa3957f8e175fa52d2b7f.png)
的图象关于直线
对称,其中常数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462801f4c1e308e39d470d87fad36ed7.png)
(Ⅰ)求
的最小正周期;
(Ⅱ)将函数
的图像向左平移
个单位,得到函数
的图像,用五点法作出函数
在区间
的图像.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec9f713beb35041d1480cd651a9f18bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8002d0c0f7ee57dc5d8bd95a54845b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff04c1e4068aa3957f8e175fa52d2b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41a85b52d149033fa86da61b74146b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1a4abf89a16078efb63fca8b3d594f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/462801f4c1e308e39d470d87fad36ed7.png)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0e65fd294d3bb8bbbfe502823bce4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48292149e92babd8efa3048b64bbc8e3.png)
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解答题-作图题
|
较难
(0.4)
解题方法
【推荐1】已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/ca333f8b-ee1b-45b8-9ad3-a105d3848096.png?resizew=380)
(1)用五点法画出这个函数在一个周期内的图像;(必须列表)
(2)求它的振幅、周期、初相、对称轴方程;
(3)说明此函数图象可由
在
上的图象经过怎样的变换得到.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d6b327fa8cc77c65ab0382d09b5712.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/20/ca333f8b-ee1b-45b8-9ad3-a105d3848096.png?resizew=380)
(1)用五点法画出这个函数在一个周期内的图像;(必须列表)
(2)求它的振幅、周期、初相、对称轴方程;
(3)说明此函数图象可由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/931db1234c7327aa072f8e96360c96e3.png)
您最近一年使用:0次