解题方法
1 . 如图为三个幂函数
在其定义域上的局部图像,则实数
从小到大的排列顺序为__________ .(请用“
”连接)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aba90a24655fd38e8fc687dca143ab3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22fc869688fdf124ce8ea1d12401d1bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/24/fcaa0258-84fe-471f-8112-69cd08566410.png?resizew=175)
您最近一年使用:0次
22-23高一上·北京·期末
解题方法
2 . 已知函数
,
,
(
且
),给出下列四个结论:
①当
时,对
,函数
的图象恒在函数
的图象上方;
②当
时,函数
与
的图象有两个交点;
③
,当
时,恒有
;
④
,方程
,
,
都有解.
其中正确结论的序号是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d76ee3b131ecd6aa1aacf7fb7b3eb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a84518e68c9e73dee93a8a3cafce4d26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48ca4dec0b8e14b9acb6463758488893.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
①当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e81b4aac721bcd4a49593b48a28a8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
②当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a813b5adbf5c7082561237894ba6d599.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35c12e17e20663e384f0e193b4435c13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/119c13383d9a3838ad3b6342ce720a75.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f36d24aa0af9ae8c0ab895b651e22aea.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00f2a980e8f3ef76cd4558c53a8e6d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9587df831df1af5e7dd6be5fdc7bd8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ade50791b5cb67652b1f0405707a90cc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aacf3f0e1424b7ed50d58a4c7ec9b378.png)
其中正确结论的序号是
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