名校
1 . 已知函数
满足
,当
时,
,且
.若
,则下列结论中正确的是__________ .(填写序号)
①
;
②
;
③
可能为0;
④
可正可负.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8c523fdae1b79e8dd663fe695f8fd11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25746a9eb7e166ba3dc61272a9ad8f81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ed85d47b4f488a9b5e211938cc5424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f740d07237106a0c1b95bf6400a96b47.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/147f89995c5aa07ce7f797c308c9c7d2.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99d47c1b2254840eb6c54ec0c6214990.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc8f775c0c874c4ea920136a91db8f.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bfc8f775c0c874c4ea920136a91db8f.png)
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2022-12-15更新
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3卷引用:上海市文来高中2023届高三上学期期中数学试题
上海市文来高中2023届高三上学期期中数学试题沪教版(2020) 必修第一册 单元训练 第4章 单元测试(A卷)(已下线)专题01幂函数、指数函数与对数函数全章复习攻略与难点强化训练(2)-【寒假自学课】(沪教版2020)