已知函数
.
(1)求
的最小正周期;
(2)求
的对称轴及单调递减区间;
(3)若
,
的值域为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbdb67bcdaf181d1d46f87bfdc1c42fb.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/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf22a342373c046f8f44c1221c8b36b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e8a3c42b668add988790e1c1bac76e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2023-12-30 16:04:51
|
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解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
.
(1)求函数
的最小正周期与对称轴方程;
(2)当
且
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/becfde0389e8fb84204fc3c5662981d2.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c04064b94dcbfdc8e7d885482f8557.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c5230f7cc073304e7b677075507c250.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b27fa0ef04dd8ec7245106375468c50.png)
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适中
(0.65)
解题方法
【推荐2】确定函数
的定义域、值域、单调区间、奇偶性、周期性.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75167c2b103c361054b34e082a30e80d.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐3】已知函数
,
.
(1)求
的最小正周期;
(2)若方程
在区间
上有且仅有两个相异的实数根
、
,且
,求
的值和
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a21930922dd6b6ff943a776a2c65f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb101c5df08aa35ae24a6416840b199b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71f7270ad108e5d91d8af7937a229a2c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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适中
(0.65)
【推荐1】函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff39e140a25c9a569025414eb89d3cd9.png)
(1)求出函数
的对称中心;
(2)写出函数
的单调增区间;
(3)说明函数
经过怎样的变换可以得到余弦曲线?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff39e140a25c9a569025414eb89d3cd9.png)
(1)求出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)说明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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适中
(0.65)
【推荐2】已知函数
,任意相邻两个对称轴之间的距离为
,
(1)求
的值并求函数
的对称轴方程、单调递增区间;
(2)若方程
在
上有两个不同的实根
,求a的取值范围和
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fe8ca763d88230ab8e7e991c74fd3fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ad72d7565699d1ebb741eb0ce12bac.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86b92b70365c63607daecdc8deb73ecf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172ca06902867591c2f437eced3e99f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450398974b1561ca801e102e16df6789.png)
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适中
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【推荐3】已知函数
的图象如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/26a53f02-69cf-4887-81a6-4b02fc65cf70.png?resizew=199)
(1)求函数
的对称中心;
(2)先将函数
图象上所有点的纵坐标伸长到原来的3倍(横坐标不变),然后将得到的函数图象上所有点的横坐标伸长到原来的2倍(纵坐标不变),最后将所得图象向左平移
个单位后得到函数
的图象.若
对任意的
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63674ffb404e6f5743974fcdc6c697b5.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/2/20/26a53f02-69cf-4887-81a6-4b02fc65cf70.png?resizew=199)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)先将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac1a63ab608517bb10aa036783dfb51f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac8fdc02a102671a2e7a65c0ce45724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6be98fe30ab0859461a1b9fdab606f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐1】已知函数
的部分图像如图所示,其中
.
![](https://img.xkw.com/dksih/QBM/2019/1/26/2126869715615744/2128691119898624/STEM/1d4123ced89242b2b0b8ba3646dbda6d.png?resizew=293)
(1)求
的值;
(2)求函数
的单调递增区间;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/431e4fc81e73b5fe4000556e38733b2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ad37053d28bb9ca9c748e3fd921491a.png)
![](https://img.xkw.com/dksih/QBM/2019/1/26/2126869715615744/2128691119898624/STEM/1d4123ced89242b2b0b8ba3646dbda6d.png?resizew=293)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e3b2e4b5f3ab0a60c787f3b47667051.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e799e937076aa5a7dcd51cdc0f40f6b0.png)
您最近一年使用:0次
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)当
时,求
的值域;
(2)解不等式:
;
(3)若
时,方程
恰有两个不同的解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2f45af072bf2c68be17e4e7c802987.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb48434bdcafb5e084fc0b6396cb9469.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97b66e348ff02fc9e7f610d7dfeda5e.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ec5d200b561e4be52ccaaebdc3105d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b443beea187d5b95eedfda53951a6694.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐1】已知函数
.
(1)求函数
的单调减区间及在区间
上的值域;
(2)若
,
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bb0ad396ea7c64ac841592ab9361d18.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d51992c05a557cf6058664f1f8961e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bdc5ef320a101441a259ef0e0c99454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a47fb2689296e12a46e6a9b65e74ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ff0e5c78c04beea4e773185195da30.png)
您最近一年使用:0次
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适中
(0.65)
【推荐2】已知函数
的最小正周期为π.
(1)求函数
的单调增区间;
(2)将函数
的图象向左平移
个单位长度,再向上平移1个单位长度,得到函数
的图象.求
在区间
上零点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05003845538bc8551e3048c8f6c31b75.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.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/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f24a86f482dc70c770215fbcc4d34ca1.png)
您最近一年使用:0次