已知函数
(
).
(1)当
时,解关于
的不等式:
;
(2)若
在
时都有意义,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82b4501de0ea72a3cef198b44dbc91ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce3a34d6f60032718820c3da2b07786b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79d5a0e25aebe1cc182d2247ed344652.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2023-02-19 10:48:57
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知
(实数b为常数).
(1)当
时,求函数
的定义域D;
(2)若不等式
当
时恒成立,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ddc9dc62bdb974fe804b10b227c4363.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5910552fe2e9e500c8d23feb5edc40ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914c67ddd60c47e91783929c8bdf8ba8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b8c164755dc2d7cff80fb4c9cffc9be.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知函数
,(
且
.)
(1)求
的定义域,并判断函数
的奇偶性;
(2)设
,对于
,
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dadbc74e0bd85d70d9d2d4bae4eb8b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d33da711e50e96568facb18cef27165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f452d701f29dd39ea9f643c2e50c3343.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ecb5ddb85c421b9b65769f352391809.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐3】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6854750a4ab6d7f69f27c883aae1cddf.png)
(1)求函数的定义域并用定义法判断函数的奇偶性;
(2)求不等式
的解集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6854750a4ab6d7f69f27c883aae1cddf.png)
(1)求函数的定义域并用定义法判断函数的奇偶性;
(2)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知函数
.
(1)当
时,求解关于
的不等式
;
(2)若方程
有两个正实数根
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e02e5fd10661594b25b0540cb04a1c5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8cc34e35bea6cd8f5189b812a8e7fad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a446d90a8b1bebe67252b21c12c92c2.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】设函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e24ce4ead2cfe357bb8f58462f27d9a.png)
(1)若不等式
的解集为
,求
的值;
(2)若
,求不等式
的解集;
(3)若
,
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e24ce4ead2cfe357bb8f58462f27d9a.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac55d420e554e9a8352c1523a3e0043e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b0113fd4c7d157757571f9a009e02af.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d26096323351f5e1508bd1338b768b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d034a1edeeff1145910d080e50cb5dd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0f39001eda1eab65ca70a6cf924c28d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a1d065b7c597c8eb18bd48a59f05f1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97514fc2246d12ab4d9896a37c53beb1.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,
,其中
且
.
(1)求
;
(2)若对于
,
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3669104d54d9a4961391628eb57d4a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14fbe64f8e9fe16a0cfd62164dcd051a.png)
(2)若对于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64ee2897d86681c6d50764207251c830.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0d7416ac10db6e62cd591829a448a8f.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
,
,其中
.
(1)解关于
的不等式:
;
(2)若函数
的最小值为
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a0473d5ff2ca25833329ef6a6d6321b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04dba590240326f133aeda99c552b700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7326ea56be82bd616fec7e6aa3c884c8.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e312eca38032174f9739126b81d012.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15c2171c1be9ec394494ad822a048d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次