已知函数
,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3029543b69d70118811bea1c2e36ae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46c2a421486eb0458eb5f189b8f4204b.png)
A.2 | B.![]() | C.![]() | D.3 |
更新时间:2023-02-14 22:32:48
|
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单选题
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解题方法
【推荐1】已知函数
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0358385cebe0047fcff4026a4c1da113.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a46e85dd6aa01843284143e0d0bce17.png)
A.![]() | B.![]() | C.2 | D.![]() |
您最近一年使用:0次
单选题
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较易
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解题方法
【推荐1】“学如逆水行舟,不进则退
心似平原跑马,易放难收”,
增广贤文
是勉励人们专心学习的
如果每天的“进步”率都是
,那么一年后是
如果每天的“落后”率都是
,那么一年后是
一年后“进步”的是“落后”的
倍
现假设每天的“进步”率和“落后”率都是
,要使“进步”的是“落后”的
倍,则大约需要经过
参考数据:
,
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b0e787c1d82071c825975348698f58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/461950348087cdb06ec28d7569d14c1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a317f002fd3ae7f3b041d4078e81fe07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06640c165056a952b81b13d625f264ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a317f002fd3ae7f3b041d4078e81fe07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a714f6374d4745278ba68ddd0b83ace9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a77f141d562af3acb28e30ab6e8ded45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8ee628efd6b2f7296c106dd5cbae42f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efba7147f5b9ced8bc4a72f0a9fb8af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/282724a3b2b45f1966a91389fdcedfcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14ace072593edc71ae045a7650241f88.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
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【推荐2】若函数
是
上的单调函数,且对任意实数
,都有
,则
( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1207913ddb6c8d581da006ffcbf820c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/228e8c5a2f55c3241ada2a6aafb6fe1c.png)
A.1 | B.![]() | C.![]() | D.0 |
您最近一年使用:0次