解题方法
1 . 若指数函数
的图象经过点
、点
,且
,
,
.则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28dcf1489b70729212717124cf8dbc2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e27c7f2b3b0a9c69e2955c95a9bb2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b3d23fe9d2c12622db48ccfebc3682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f5cb7c33edec5a388f6e27e2676ad21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07523c38c4734ec51af3ddb0d8b170ef.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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名校
解题方法
2 . 已知指数函数
的图象经过点
.
(1)求
及
的值;
(2)当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b583db564652742ec2629d9d0b8b44e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8365f284746d05b885850795cfa9822b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a32822a106d217ffdec43557a236f786.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c11234d146f5d862e904ff3af730c6e.png)
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2022-11-22更新
|
582次组卷
|
3卷引用:四川省广安市广安第二中学校2022-2023学年高一上学期期中数学试题
3 . 已知两个条件:①
;②
在
上单调递减.请写出一个同时满足以上两个条件的函数____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a58c17a5199224c9cee0d26c876addaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
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4 . 若函数
(
,且
)的图象经过点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98f0d1eec09be04abc5b5b17245dbf67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a3619ccbcf65312754a970647014e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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