为了得到函数
的图象,需将函数
的图象沿
轴向右平移
个单位长度,则正实数
的最小值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/325f9e2f7784ebdd64292e805884dfa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d15951f19a90b8791f7f08faf0e61e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2020-06-24 11:28:03
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【推荐1】将函数
的图像向右平移
个单位长度后,所得函数为偶函数,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46626b75bd7bc420bf32b66e3253b40b.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a72d3b70bbdbdeb9a19a051e8bf28fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8815214fd33f41a3cb7698b01f4a4946.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46626b75bd7bc420bf32b66e3253b40b.png)
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【推荐2】函数
,
,有下列命题:
①
的表达式可改写为
;
②直线
是函数
图象的一条对称轴;
③函数
的图象可以由函数
的图象向右平移
个单位长度得到;
④满足
的
的取值范围是
.
其中正确的命题序号是__________ .(注:把你认为正确的命题序号都填上)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adcf0495a0c37afd46a43bbad96448ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/389a2b562c9f9e80146d98971872f0e5.png)
②直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720091d877ca5e2837b0f410fb99631d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
③函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08921a72d608d1618d765569e752a4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c67d01e61dc0042e67b5e8ec8e727c22.png)
④满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c57c54f7bc111616c46409cf93c18d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4aede528c1e68bb5df89c0c2ba81838.png)
其中正确的命题序号是
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【推荐1】已知函数
,下列给出四个结论:
①
的最大值为2;
②
在区间
上的单调增区间是
;
③在
中,若
,则
;
④将曲线
向左平移
个单位,得到函数
的图象,再将曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
所有点的纵坐标变为原来的2倍(横坐标不变),得到函数
的导数
的图象.其中正确的是_______________ (填写所有正确结论的编号).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442d6067ca4030433f3805cc67976833.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a80708bb56041678e6256ca37ec2355.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38fee19fef930b81f2605c4642b6211c.png)
③在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0faed94a64b2dcfc6801b4fca0f16675.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2efdeeb6b84f83665c70b6a8069d703c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d48971039c788543405c600f7bf93de.png)
④将曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
所有点的纵坐标变为原来的2倍(横坐标不变),得到函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/724340d69477c0ec2418c392b22b1cab.png)
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解题方法
【推荐2】为得到函数
的图象,可以把
的图象向右平移
个单位得到,那么
的最小正值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58c65d71e57e6e7697e2f627dcd58583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
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【推荐3】函数
(其中
,
)的图像如图所示,为了得到
的图像,则需将
的图象向右最小平移______ 个长度单位.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af5e2a383cb47eb87493e86c8c40caf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13378be06b6b01bcad1d261ff14e87cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c1a7876bcfcfb06d2d0fcc4f7648586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16b3c1bef51cb5fe6d9fe0b033c6b026.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次