若函数
(
)满足:①
是偶函数;②
的图象关于点
对称;③
在
上有两个零点.则同时满足①②③的
值是______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e4892080a918aa2127c09e8d4c28c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffd0a537784667a866cd79749091b314.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa0082eaec44556e43a4a987c8e01e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3aae9c8988f4a48db69cad3308942c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074c228ffc7b1e306f8410afe7bc4b5c.png)
19-20高三下·四川绵阳·阶段练习 查看更多[2]
更新时间:2020-03-23 19:46:57
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【知识点】 由正(余)弦函数的性质确定图象(解析式)解读
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名校
解题方法
【推荐1】已知
是周期为
的偶函数,则函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
____________ (写出符合条件的一个函数解析式即可)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6eb7c2b0fec6786bd27dab3716f981d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ebba6ed1add0fe647c0226614b9290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ba99a5c5661eedaef4b36ade1a7c5c5.png)
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【推荐2】去年某地的月平均气温
与月份
(月)近似地满足函数
(
为常数).若
月份的平均气温约为
,
月份的月平均气温为
,则该地
月份的月平均气温约为___________
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfedf813cb6f8b7ab22b8bc2226d2194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8dc69d447c0c750bc4f395a95342340c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45a448132b8c2425f48d2d8a8c323674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da45c443af7994a26ffa9d8894e7262.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788863fa287ff9b9c2e4c06028fa5384.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3304e23f3b0f9569c4140ca89b6498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fc741130e64ac9491fb310c9abf9e2f.png)
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【推荐3】已知函数
的图象的两条相邻对称轴间的距离为
,将函数
的图象向左平移
个单位长度后得到函数
的图象,则函数
在区间
上的值域为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d0822fdcc736ce72c46086bab31c2ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d49f8a63ddbca52039fa9ab44cda6b29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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![](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/a1294183e75e2240c38d9ab205f82ce7.png)
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