已知
为奇函数,设
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0632bc67a48ee16de53fe7e19ec3328.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf3f0cc437216c6834a8a0400be97eff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed0775545e7c370b4bf64cf9d4a7b205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0632bc67a48ee16de53fe7e19ec3328.png)
更新时间:2021-12-17 21:18:12
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【推荐2】对于温度的计量,世界上大部分国家使用摄氏温标(
),少数国家使用华氏温标(
),两种温标间有如下对应关系:
根据表格中数值间呈现的规律,给出下列三个推断:
①
对应
;
②
对应
;
③存在某个温度,其摄氏温标的数值等于其华氏温标的数值.
其中所有正确推断的序号是_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de96374212b9a5df820d78d10e7d1291.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d2e6f453529f67d47029e676e101fa1.png)
摄氏温标(![]() | … | 0 | 10 | 20 | 30 | 40 | 50 | … |
华氏温标(![]() | … | 32 | 50 | 68 | 86 | 104 | 122 | … |
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7889f265b1bac6f19624eb93f5dbdc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70e84f0752917be8193ae8904597eb93.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b3ee57b9d71d700e78f43ed84d11e86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bce05b7fe7399da4f3b66f05f6bdf8b8.png)
③存在某个温度,其摄氏温标的数值等于其华氏温标的数值.
其中所有正确推断的序号是
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解题方法
【推荐1】设
为定义在
上的奇函数,当
时,
(
为常数),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3347fc5c071e9be6ca3b312ed8fb67c4.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37a48a4fdcdd9bdf3fd7c5a66aa82ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3347fc5c071e9be6ca3b312ed8fb67c4.png)
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名校
【推荐2】已知函数
,且
=3,则
=_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6558d2cc6f81fb05613e03570859899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f14be574d4eaf7f7e0d2b28ade7f3ea1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e1a1611f320c0f358df77aaae3f942.png)
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