已知函数
,且当
时,
的最小值为2,
(1)求
的值,并求
的单调递增区间.
(2)若将函数
的图象上的点的纵坐标不变,横坐标缩小到原来的
,再将所得的图象向右平移
个单位长度,得到函数
的图象,求方程
在区间
上所有根之和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1334b4fe72a5ebb3a550b350af4abc40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09dd703f20cea76efd06457cefbd9722.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)若将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09b29a7faa14a6e09d0db2d04f4ced03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdaf49f9611922348aa2784465da614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dc6e69ad1a27916fb5c3d5901ded134.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34e162538157ea559cd25e0a1a76b520.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f457df0f9d14437a7f0443bb297e6ee8.png)
更新时间:2020-02-18 11:17:24
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解答题-问答题
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适中
(0.65)
【推荐1】已知函数
.
(1)求
的最小正周期;
(2)若函数
的图象与直线
没有公共点,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f100d8eb80110f5ff1a9002fddbb2e7f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1445cb1874f69ff72ac1fb5eecbd7386.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知函数
.
(1)若
,函数
的最大值为0,最小值为
,求
,
的值;
(2)当
时,函数
的最大值为2,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c2c0ebbf03fc2f7ff5e59c7bde54c77.png)
(1)若
![](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/01317332a203c898536b1d0459f51d23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4cb70c4fa804117012f443a5bbed9697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐1】将函数
的图象上所有点的横坐标缩短到原来的
倍(纵坐标不变),再将所得的图象向左平移
个单位长度后得到函数
的图象.
(1)写出函数
的解析式;
(2)若
,
,求
的最小值
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d45c81531a74a6ca319b5a0133c14aa2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8463d6a1d0c55719f6011c7b79f1b430.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f2f7faf250a816ce992810a991695a.png)
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适中
(0.65)
【推荐2】已知函数f(x)=
sin(ωx+φ)
的图象关于直线x=
对称,且图象上相邻两个最高点的距离为π.
(1)求ω和φ的值;
(2)当x∈
时,求函数y=f(x)的最大值和最小值.
![](https://img.xkw.com/dksih/QBM/2018/8/1/2030701035102208/2035720058658816/STEM/c473df1543bd4585bd6e856114de0e1e.png?resizew=18)
![](https://img.xkw.com/dksih/QBM/2018/8/1/2030701035102208/2035720058658816/STEM/1efe2e8f50814902ab51ca3860d74ce9.png?resizew=146)
![](https://img.xkw.com/dksih/QBM/2018/8/1/2030701035102208/2035720058658816/STEM/1ffde608411e4aa5bb538b1f864bb461.png?resizew=15)
(1)求ω和φ的值;
(2)当x∈
![](https://img.xkw.com/dksih/QBM/2018/8/1/2030701035102208/2035720058658816/STEM/8034cd9d94194556bef70621a03af475.png?resizew=48)
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适中
(0.65)
名校
【推荐1】设函数
.
(1)求
的最小正周期及单调递增区间;
(2)若
且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9bd55eaca6e2c21035e2ae719680a00.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad247495d64553003b221298c649c4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c50c7d36d71de97fc780f2f20709a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ff0e5c78c04beea4e773185195da30.png)
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适中
(0.65)
【推荐2】已知函数
.
(1)求函数
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分别是角
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,
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