已知条件p:实数x满足
,其中
;条件q:实数x满足
.
若
且“
”为真,求实数x的取值范围;
若q是p的充分条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb31527aa6baa501f260cd42720788d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae018fde08edf0539089f98c17e11ff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5600b34cfc2b3fc522d9012bb2ffac10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/302337058242c7b78e3eb4ac7210b7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/094543346d88c4ed45c1b1fb91f5265b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
更新时间:2018-12-12 09:24:53
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适中
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【推荐1】设
实数满足
;
实数
使得命题:“
,使
”是假命题.若
是
的充分不必要条件,求实数
的取值范围.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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适中
(0.65)
名校
解题方法
【推荐2】设
:
,
:
,若
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的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c9121cede0ee0562e23b8a26b34616.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47e00a5feae510693668aee6c2bb7258.png)
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8db232439f789f395404ed078f7ea78.png)
(1)求不等式
的解集;
(2)若对一切
的实数,均有
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bc77f1780845d8a3222832a42d6eb65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8db232439f789f395404ed078f7ea78.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0527a896aec4a245945e5edee00deed.png)
(2)若对一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c0aa2ef928b6e3341d0a0dc6d8055b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7678f14abdfbb07df2871b072d9aece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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适中
(0.65)
名校
【推荐2】设集合
,集合
.
(1)若
,求
;
(2)设命题
:
,命题
:
,若
是
成立的必要不充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4005b6bdc604d2af77df38606522d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b73f0d50fa1b4a4d71a63f63b86da8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)设命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知函数
,
.
(1)解关于
的不等式
.
(2)当
时,若存在
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14949ca95153272250adf99db45954db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcd9218a657b17654c5d757a6f7dee9a.png)
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd5e026a565c24617edc36f82fd85e63.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f4c78214e43a8b93f2a57072033cbcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbf688ee44585d9d11be06435ab2de5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2367b48e8f6dbbfe3dd14f6eab8238a5.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
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适中
(0.65)
【推荐2】已知不等式
的解集为
或![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d5c65d76b90bafe1a009ef1693af2f.png)
.
(1)求实数a,b的值;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f4e5abb91dc1348592a389b0116d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d6053a76713182023f389de09d53263.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d5c65d76b90bafe1a009ef1693af2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320c73734fc31589c361061865947ced.png)
(1)求实数a,b的值;
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e40076ed3ba536253c06942df9d6de92.png)
您最近一年使用:0次