已知函数
.
(1)求函数
的最小正周期;
(2)若将函数
的图象沿
轴向右平移
个单位长度得到函数
的图象,求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b68c60400ec79c837f9ba0a91a73bae.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
更新时间:2019-12-28 12:23:09
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解题方法
【推荐1】已知函数
.
(1)求
的最小正周期及单调递增区间.
(2)证明:当
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e33ca7e07147d9ca3a3d39f3f70fb58e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1b0fd50ac74f1578fff87c2e18ffe80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b1fccffb7ae919fe6c9a68f48ef7e11.png)
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名校
【推荐2】已知函数
.
(1)求函数
的最小正周期;
(2)若不等式
对任意
恒成立,求整数m的最大值;
(3)若函数
,将函数
的图象上各点的横坐标缩短到原来的
倍(纵坐标不变),再向右平移
个单位,得到函数
的图象,若关于x的方程
在
上有解,求实数k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d2da235429bfcd9820f8eb222497800.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1a5e852e1c24c14b46a70ae4f43c1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b392ae979e54da7e26bbc2d967a72666.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4084a62486235db819f6deeb92a42fac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.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/f786a5701dc1a8a015e8843c3360151b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e09665420f17b7fbc6ffa7244ba0573a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade41af6cd77fbccd58850a3448499a0.png)
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【推荐1】已知函数
的部分图象如图所示:
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/220576ac-7354-41e9-a9e7-56741556ba20.png?resizew=191)
(1)求
的解析式;
(2)求
的单调递减区间和对称中心坐标;
(3)将
的图象向右平移
个单位,再将横坐标伸长到原来的2倍,纵坐标不变,最后将图象向上平移1个单位,得到函数
的图象,求函数
在
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1e5a89928e52f83c0517572987caee1.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/21/220576ac-7354-41e9-a9e7-56741556ba20.png?resizew=191)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)将
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27794407a3d82a6746f7e0871051f486.png)
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【推荐2】已知函数
,将函数
的图像上每个点的纵坐标扩大到原来的2倍,再将图像上每个点的横坐标缩短到原来的
,然后向左平移
个单位,再向上平移
个单位,得到
的图像.
(1)当
时,求
的值域;
(2)已知锐角△
的内角
、
、
的对边分别为
、
、
,若
,
,
,求△
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a7f3e7a8ac89631c8b6ef28fa80114.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.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/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778662c16848db470c6537705b8a839c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)已知锐角△
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/693b14c5adf288910b71b2426e518519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e876b53581904085bbc4e00fad0c718f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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【推荐3】已知函数
,满足______.
在:①函数
的一个零点为0;②函数
图象上相邻两条对称轴的距离为
;③函数
图象的一个最低点的坐标为
,这三个条件中任选两个,补充在上面问题中,并给出问题的解答.
(1)求
的解析式;
(2)把
的图象向右平移
个单位,再向上平移1个单位,得到函数
的图象,若
在区间
上的最大值为2,求实数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88ee58fca2a7ccf244760b5ef7fd18d9.png)
在:①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e869f58433878731c8b73f946c98ef.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)把
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/037fb348109dc2063a268b10eb925a57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97cb4449813281f46fdfaa54bf9bf5dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐1】将函数
的图像进行如下变换:先向下平移
个单位长度,再向左平移
个单位长度,得到函数
的图像
(1)求
的最小正周期及单调增区间
(2)当
时,方程
有两个不等的实根
,求实数
的取值范围
(3)若函数
在区间
内恰有2022个零点,求
的所有可能取值
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84005158547c0dfe3fd36a54fa06c20d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5cdde751120c6deab563a6f7f8cf05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2818807dce7e9ec5514de572c3cc644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1adb4910475f817ded8ada2da36b1a8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e4c1927483c5074919ea78503186f91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
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【推荐2】已知函数
的最小正周期为
.
(1)求
和函数的最小值;
(2)求函数
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1ffd96de47a4039b22c97466cf6527.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70f5389990c3a0c5373f3bd9fb2454c9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
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【推荐3】已知函数
是函数
的图象与直线
的两个交点的横坐标,且
的最小值为
.
(1)求
的解析式;
(2)若函数
在
上有两个零点,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19540f886558138ae93d8633a96baa9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc6abf3f9b0ebcdc47a028c781b7edb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5b9f57d3634f8337f1414f8a2a2dc0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071d8582f3f72ee89ed3b5d1cc26d08c.png)
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