已知函数
.
(1)若关于
的不等式
的解集为
,求
,
的值;
(2)当
时,解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72fa052bfb316c693990b6d855f3801a.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a57458464618fcf619375a93d3c66d69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/267eda4eb02924140d1b39be8c6192d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03837b3769eda7f0d3804cc5ad4a6d60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
更新时间:2023-05-26 14:47:41
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知关于
的不等式
,
.
(1)已知不等式的解集为
,求实数
的值;
(2)若不等式
对
恒成立,求实数
的取值范围;
(3)解关于
的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72636984e473796c17053fd97a4dacd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)已知不等式的解集为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e2f5d95555c4b9c4e5801aa5364b256.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1574c9ae062f80ca98626c39b92c731e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72636984e473796c17053fd97a4dacd6.png)
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适中
(0.65)
【推荐2】已知关于x的不等式
的解集为(1,2),解关于x的不等式
”有如下解决方案:
解:由
,得
.令
,则
,所以不等式
的解集为
.
请你参考上述解法,解决如下问题:
已知关于x的不等式
的解集为
,求关于x的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41563598c0fd893422c087bb3bd31e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad632cc17512bf31c874a195cbdf957.png)
解:由
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f41563598c0fd893422c087bb3bd31e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ad6a5f1a193559278d5fcc2859b5ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f42b2a9736c8943106472a7398d2892.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb2554f7dcdbb3dc5cc069420b1425a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad632cc17512bf31c874a195cbdf957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27f935fa5d0ae1b208aff21aa468ecf8.png)
请你参考上述解法,解决如下问题:
已知关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b527d3a72e43cb15d69d22b406217eec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/107d625f9ef0f930249786fd4a731349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09ea14fdd52fe97c558c4e8fe47bcb91.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐3】已知
.
(1)解关于
的不等式
;
(2)若不等式
对于
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6745c65ffe498d937bc46fe34d1f3f.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f54ecfa11026d97c8d315e55e0d34a.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6b6ca5520b8cb8ed5d9303f33caad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53224898de85a85058ad336490bbbaa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.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】已知关于
的不等式
的解集为
,
.
(1)若
,求实数
的取值范围;
(2)若___________,求
的取值范围.
请在①
;②
;③
这三个条件中任选一个补充在横线处然后作答.(注:如果选择多个条件分别解答,按第一个解答计分)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933e48960857a63826188ac9cc6675cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43d48f7d11d4cb9315310eeee450c295.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52854d0ead4737302f4b4706e1f80553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若___________,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
请在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
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适中
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【推荐2】已知集合A=
,B={x|
(9-x2)<
(6-2x)},又A∩B={x|x2+ax+b<0},求a+b的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb4a0a6ec5084b29b2f0d72fc9c0ecc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80bbfc80b666742edf27a922c51d944a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80bbfc80b666742edf27a922c51d944a.png)
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