已知函数
.
(1)求函数
的单调递增区间;
(2)求函数
在区间
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d14d7552dc96c6484061fa94f3c40ea.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db40d5295942e85ec07a3728c7ad308d.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ab6b7ae1faeaca91a23b2140ad92c9.png)
更新时间:2019-04-13 17:45:35
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【推荐1】已知函数
.
(Ⅰ)若
为锐角,且
,求
的值;
(Ⅱ)若函数
,当
时,求
的单调递减区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75b84dee4d9e4d903f4db86af7e66a8c.png)
(Ⅰ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f7daaafe649f5fad149391b5992f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c1ba6b6ee00c4b2763cb3fa59caa69f.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1beef8e706df214418dae99f03f8ea3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4908e3b4e523c042732ccb7c215aac99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
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名校
解题方法
【推荐1】已知函数
的图象如图所示.
的解析式;
(2)首先将函数
的图象上每一点横坐标缩短为原来的
,然后将所得函数图象向右平移
个单位,最后再向上平移
个单位得到函数
的图象,求函数
在
内的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8355001800333df17798ae21eeaa266d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)首先将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c487fec20bd809e0baf5cb39afe8979.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18c9aeed3c8c5a04e48d011c607f9142.png)
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【推荐2】已知函数
的图象过点
.
(1)求常数
;
(2)当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb05a6536ea82766c3bd5e38c8ad8198.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45e5cdcc3cf3ca21f12edaf5397ddbd9.png)
(1)求常数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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【推荐1】如图,单位圆上有一点
,点
以点
为起点按逆时针方向以每秒
弧度做圆周运动,点
的纵坐标
是关于时间
的函数,记作
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/bfd8fc6f-6779-4bcf-971c-46512ec5fcfe.png?resizew=173)
(1)当
时,求
;
(2)若将函数
向左平移
个单位长度后,得到的曲线关于
轴对称,求
的最小正值,并求此时
在
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e44dc87bb421b81a78102ab04801d0c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/22/bfd8fc6f-6779-4bcf-971c-46512ec5fcfe.png?resizew=173)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c55a07ae95a549d15c36c08fe7e9c31.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5d55ef0d1b7ea88d92fd6e1ecebb5f5.png)
(2)若将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cdaf49f9611922348aa2784465da614.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9be3ae019435da2f8676a5eaafc0b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ce485410257c9c1fae9d87ce3e44cc8.png)
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【推荐2】求函数
的周期、最大值和最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c29b2fe1c8d401ecc5444b26def15741.png)
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【推荐1】已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414c9955dad25d910173790b09c5b797.png)
.
(1)求
的最小正周期;
(2)求
的单调增区间;
(3)若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
[
,
]时,求
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/414c9955dad25d910173790b09c5b797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b1b873a6d3fceb57cfbc18b2c9d406.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ee87c2238af98e17416a22aca19ee5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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【推荐2】已知函数
.
(1)求函数
的最小正周期和单调递减区间;
(2)求函数
在
上的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c7cd11b1791e2f84cf90319aa49d82.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da0b1b34a0cb69bd9e0a4622b6352968.png)
您最近一年使用:0次