设
,
为实数,已知关于
的不等式
的解集
.
(1)求
,
的值;
(2)若
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88b6d0df0ee20bf56477f867015a08c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de2871ea38291bfebcd5b4a8f4df26d9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b9385caf6262a89bbc1114bfe26b237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2021-11-22 12:57:32
|
相似题推荐
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知
,
.
(1)若
,求
;
(2)从①
;②
;③
这三个条件中任选一个,补充在下面横线上,并进行解答.
问题:若__________ ,求实数
的所有取值构成的集合
.
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/ca901143322f8388af4588ef84504d68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/619d90176a76cf9f5625c247966db0d4.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11a9c837c6a8462cf5351ef32ac3d586.png)
(2)从①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969df982f5116bd8eafbd4c8acca3971.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ccea9a39ce78e14ec3080fa15d86c71.png)
问题:若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
注:如果选择多个条件分别解答,按第一个解答计分.
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适中
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【推荐2】已知集合
,
.
(1)当
时,求
;
(2)若
,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f7b0f6d186ad2eed8ded147b906d0173.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c78d04f1108774d63c00308b4ac6fa2.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83ae18508906c21d3e1199f231b1a9a4.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9d0d79fd0efdb59c9ca65bfae4a0861.png)
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解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知不等式
.
(1)若
,解不等式
;
(2)当
时,求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0ed65402b4b942f0bba0daf4063717.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0ed65402b4b942f0bba0daf4063717.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd0ed65402b4b942f0bba0daf4063717.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知二次函数
,其中
是实数.
(1)若函数
没有零点,求
的取值范围;
(2)设不等式
的解集为
,当
为什么正数时,集合
?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d0dcf111550f49759370f1c663f8a719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff9da55d0f1d1aa0d772372eccdc2fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5b36dae4101bda96a128aec00beefbe.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
解题方法
【推荐1】设
,已知二次函数
.若关于
的不等式
的解集为
,且
.
(1)求
的值;
(2)若
均小于
,求
的取值范围;
(3)若对任意的
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e68a83b4093280ea8750677f6828bf47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7582902b416cf00aa7720b9ba2bfa87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e9c2932022e90dc6f3892f25e535ba9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b70fc850e0eec4580731c4d8c74849a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985220f1a4d21a89651aa559ec09b91b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(3)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48e70ad307dbeb95e4c8382636fdf9ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.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】(1)已知
的解集为
,求
,
.
(2)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db021309fd565df47cf7298b367b318b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881fe2df23c5a0fe1d1fecbe9ffa55fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8168db3449e0942096659d683b1240c6.png)
您最近一年使用:0次