已知函数![](https://img.xkw.com/dksih/QBM/2015/12/14/1572354054979584/1572354060722176/STEM/a24c1d322cf947d0b7b3471e43cef335.png)
(Ⅰ)若1是关于x的方程
的一个解,求t的值;
(Ⅱ)当
时,解不等式
;
(Ⅲ)若函数
在区间
上有零点,求t的取值范围.
![](https://img.xkw.com/dksih/QBM/2015/12/14/1572354054979584/1572354060722176/STEM/a24c1d322cf947d0b7b3471e43cef335.png)
(Ⅰ)若1是关于x的方程
![](https://img.xkw.com/dksih/QBM/2015/12/14/1572354054979584/1572354060722176/STEM/b59b302f8d7e4cb69d0c88bd0ee70a8f.png)
(Ⅱ)当
![](https://img.xkw.com/dksih/QBM/2015/12/14/1572354054979584/1572354060722176/STEM/c0d631feaae24d3a8a29c9d3f4161e53.png)
![](https://img.xkw.com/dksih/QBM/2015/12/14/1572354054979584/1572354060722176/STEM/a6ac7a04d9104f168e8b08fa1458d4df.png)
(Ⅲ)若函数
![](https://img.xkw.com/dksih/QBM/2015/12/14/1572354054979584/1572354060722176/STEM/b951886d131c4d998923d184e6a42f4f.png)
![](https://img.xkw.com/dksih/QBM/2015/12/14/1572354054979584/1572354060722176/STEM/79c50a7f4abf4e9d81c8fb6532ff345a.png)
更新时间:2016-12-03 20:57:41
|
【知识点】 对数函数
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
的图像恒过定点
,且点
又在函数
的图像上.
(1)若
,求
的值![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)若关于
的不等式
在
上恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc3815122b88d5d22279b08e4cc838ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6094eb398323450bab30d46229c1cb62.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f7fcbcfdaaed2c3389254cfef2943a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e1d918e7fb74176679d526cdfc8fa16.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f9cbe9988575b9bbe95be8abd86f723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d660b2fbb91d3877318b3ecb18ef5446.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
【推荐2】(1)已知角
终边上一点
,求
的值;
(2)计算:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a0cc78c3e209937bd33da16b04044a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20cb13ee042ef1a30a6f4878166128d1.png)
(2)计算:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc114d727bc2ea353b4a5d11ddd18218.png)
您最近一年使用:0次