设
“关于
的不等式
的解集为
”,
“函数
在区间
上有零点”.
(1)若
为真,求
的取值范围;
(2)若
为假,
为真,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/30093371957cc3d85050dffb500bd72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f374970610d6e91f577fc3a18f967761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba61bb1a5f689b6f247d2c01d35e1c6c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a73ef876d9a3f214aa7f122bdf0dbe39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f13464ef59677ed7d9e6de377a2b9254.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/094543346d88c4ed45c1b1fb91f5265b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d426f0f57b67c00ab87e81c9d1d5ef1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2017-12-20 10:46:22
|
相似题推荐
解答题-问答题
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【推荐1】已知命题
,命题
表示焦点在
轴上的双曲线.
(1)命题
为真命题,求实数
的取值范围;
(2)若命题“
”为真,命题“
”为假,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619489121755136/1619489122336768/STEM/c3672cf13ae3427998ea50d5649ccaf9.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619489121755136/1619489122336768/STEM/2d97e81b516547ef85106ad10bb04030.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619489121755136/1619489122336768/STEM/04ef5bac369641f5b769cf90278d6ab3.png)
(1)命题
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619489121755136/1619489122336768/STEM/2d6fefdbdc4d4b41b5806f85143bff8b.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619489121755136/1619489122336768/STEM/b4c567ec398c434085d61bcbc3e1f350.png)
(2)若命题“
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619489121755136/1619489122336768/STEM/25a486644e9f40529dbf3060cae06495.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619489121755136/1619489122336768/STEM/ba6f9a23d9c24c9d8b5277dcd3421365.png)
![](https://img.xkw.com/dksih/QBM/2017/2/7/1619489121755136/1619489122336768/STEM/b4c567ec398c434085d61bcbc3e1f350.png)
您最近一年使用:0次
解答题-问答题
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(0.85)
【推荐2】已知p:复数
所对应的点在复平面的第四象限内
其中
,q:
,
其中
.
如果“p或q”为真,求实数a的取值范围;
如果“p且
”为真,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709d86384173b30519b2569f96326731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f92964a35a9a61a693ac66429deab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a862b1cabd8c3e320cbe39aa3f25ca0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36e33d27de8b936855a5a001bd9d4ab0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f92964a35a9a61a693ac66429deab55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80dcb3939c6a855db65a65d4cc82ae81.png)
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名校
【推荐1】已知命题
:关于
方程
有两个不相等的负根,命题
:关于
的方程
无实数根.
(1)若命题
是真命题,求
的取值范围;
(2)若命题
,
中有且仅有一个是真命题,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15f38984514877650255b928803a5145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a96bf55a176a4a9e6b9b83158e57365.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若命题
![](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/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
【推荐2】设命题
对任意
,不等式
恒成立;命题
存在
,使得不等式
成立.
(Ⅰ)若p为真命题,求实数m的取值范围;
(Ⅱ)若命题p,q至少有一个是真命题,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/538193a4717d564c01145e82314c2d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92bc3dce90370564a43b50c36661c004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad5d60bd8323f35a00810619afc32f62.png)
(Ⅰ)若p为真命题,求实数m的取值范围;
(Ⅱ)若命题p,q至少有一个是真命题,求实数m的取值范围.
您最近一年使用:0次