(1)求值: lg
+lg
﹣
﹣
+
;
(2)求函数
的定义域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2967337e3fcb228dded64ab0c41a17e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af017522332af5426cf64283b007a1ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18035edc7906e0ecd04928692542ec98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79687dd6d10c35cec28f963242fdbcce.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02395892b541f2908ddf2a6eea58775.png)
更新时间:2020-12-27 18:59:04
|
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】已知函数
的定义域为集合
,
.
(1)若
,求实数
的取值范围;
(2)若全集
,
,求
及
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/868016e02671f39bef62f332727c75c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf61b7c6d1c49ebcb814e9cd61f9590.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若全集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afea7595bffc77585b66a16337ffba93.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c093cbde3d3472d1f7f2b0dff2bc4881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9ee4df3cd0c5982eec8be19e136130.png)
您最近一年使用:0次
【推荐2】已知
.
(1)求
的定义域;
(2)讨论
的单调性;
(3)求
在区间
上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29575db4969040280bf72adc2b2dd234.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)讨论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b448fe164c2c2931805e3b3847dcdd75.png)
您最近一年使用:0次
解答题-问答题
|
较易
(0.85)
解题方法
【推荐2】已知函数
过点
.
(1)求函数的定义域及实数a的值;
(2)求不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45012b689bc00396f4aa3abb5f27aa1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0481d24e2af1e0cd348732b9444d1dde.png)
(1)求函数的定义域及实数a的值;
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
您最近一年使用:0次