已知实数
满足约束条件![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c75b787a00a0979d229f89df1b7ef14.png)
(1)若点
在上述不等式所表示的平面区域内,求实数
的取值范围.
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c75b787a00a0979d229f89df1b7ef14.png)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8f6693700eb3d032e7d7a7634cba6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aba3f06a47c86b096f284cde5270594.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
更新时间:2020-06-04 06:22:59
|
相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
满足
.
(1)求
取到最值时的最优解;
(2)求
的取值范围;
(3)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/311925192ea25eee8ce7bf0848430b4e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03493d31a4167f0fb7c5f163ec3a46f7.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4267293ed937c28e1b3e17c9eabbbab.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e9dc02ab6529de478840514971cad62.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1】已知实数
满足
,求下列各式的最小值,
并指出取得最小值时
的值.
(1)
;(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a052a9cb55940ca609aeee5cd15cfc.png)
并指出取得最小值时
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31217f8734ee6b3d4ec80e2781193909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2736f4661f02df6538e3e3b7f916fb3f.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】已知命题P:方程
在区间
和
上各有一个实数根.命题
函数
的值域为R.
(1)若命题P是真命题,求
的取值集合M;
(2)若“
”是q成立的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1146110d4382c714c10de00dd1273b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a50188f84f379b3d0418c54cbade7d7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/920e0d57534398f49f800521fdfdb5fb.png)
(1)若命题P是真命题,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3ec08be6e5edde3502faba89bb505e0.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d34afba5f43d301946429980327d3be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次