设集合
,
,
.
(1)若
,
,求实数
,
的值;
(2)若“
”是“
”的必要不充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f368a0b702e747116fb4fea27072b056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e52414cb4036f44715ba86126631a2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67b7bd41f91baf1a5abd5168b013e824.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7f14bf7f60fe19b509223284455f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a485af27b40b8aab347eca1aa660e699.png)
![](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/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2023-03-17 15:36:02
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知全集
,集合
,
.
(1)是否存在实数
使得
,
真命题,若存在,求
的取值范围,若不存在说明理由;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6343b1b692a2aa0be1676b6e558528e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/699e3eaa70cf01c2589807f33bbdf427.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45530d01dea9965f6608f6cc489990ff.png)
(1)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd170c506a8ce70f550f5751ae016ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653bcf7b627c3b87fcb310732313d9b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.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)
【推荐2】已知集合
,
.
(1)实数a在什么取值范围内时,
;
(2)实数a在什么取值范围内时,BA.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcb4cdba400052746cf04a181aab56b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f40677ebfc1fdbace0ba355c1101d0d4.png)
(1)实数a在什么取值范围内时,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57ed5930525a04c8fa26e535147e3085.png)
(2)实数a在什么取值范围内时,BA.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知集合
,
.
(Ⅰ)当
时,求
,
;
(Ⅱ)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68619212e4aacedc49f756474cbab915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/161c8a2028c8ab85be41988077ebb5ae.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bab38ca16934c15a43bbb90cf6cc0fa.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)
解题方法
【推荐2】已知全集
,集合
,
.
(1)求
;
(2)设集合
,若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188791535098a44dcdea38cd18d79ba3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b51d7a3e667adea34e70ef0ff32968be.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fa0b103a1370b4baf7ca916eeebf9f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1561cc8d4b5688f114b7563fb51a272.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
【推荐1】已知集合M={x|x<-3或x>5},P={x|(x-a)·(x-8)≤0}.
(1)求实数a的取值范围,使它成为M∩P={x|5<x≤8}的充要条件;
(2)求实数a的一个值,使它成为M∩P={x|5<x≤8}的一个充分但不必要条件;
(3)求实数a的取值范围,使它成为M∩P={x|5<x≤8}的一个必要但不充分条件.
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】设全集
,集合
,集合
,其中
.
(1)若“
”是“
”的必要条件,求
的取值范围;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521b88c5ca35d98594f0e684fac7f512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67e2f170d8302023a4378f27f62c97a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.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
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适中
(0.65)
名校
解题方法
【推荐1】设函数
.
(1)若不等式
的解集
,求
的值;
(2)当
时,设
,满足是对任意
,都有
成立,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a5d60a29164af671ae8ef3728f8493.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27cf818dd484cc4cebd40a5f28eb8e9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d6fc9b90f370fbb27552876b650f8f.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d81610e404e8f7c3781eace49c42534a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1853a02d432b090edbcffc612bd140e8.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
的解集为
.
(1)求
的值;
(2)若对于任意的
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc88e1bc962789a33e7f1b85606da276.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5612e6ff311a32aee135f7442dd97e59.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6070f2ee5e48cce77eb4a2cb9f11ccfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c40c437e070bf871239460f4447482f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.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3】已知关于
的不等式
的解集为
.
(1)求实数
,
的值;
(2)当
,
,且满足
时,若
关于
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f43b179f38143807e1607b7b30a462c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b1e5c9f85891f4af15e0e5e8e2d406b.png)
(1)求实数
![](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/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953521e0c0ec1c417d7ca2197d8c601e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0c5a82aeeed113fef6894b392a37df8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次