已知
:
,
:
.
(1)若
为真,求
的取值范围;
(2)若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db84def74d904aafe42dfe39cc70ef3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84f0573d17322360c2edf25ef4fffd02.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若
![](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)
更新时间:2020-01-31 23:09:00
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解答题-问答题
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解题方法
【推荐1】已知条件
,条件
,且
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62a4ee39db39d41b699e64d02ef19b8d.png)
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【推荐2】已知
:“实数
满足不等式
”;
:“实数
满足不等式
,其中实数
”.若
是
的充分不必要条件,求实数
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/ba7ab4e71c717ff53225d38d5b32ae1e.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/331fd275df4e7dd63d627cfda9ff8ab2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
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【推荐1】命题
存在
,使得
;命题
对任意的
,都有
.
(1)若命题p为真时,求实数a的取值范围;若命题q为假时,求实数a的取值范围;
(2)如果命题
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07ad90ca228230b03f12eb48ee0c1d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87ab00213dce519c3b25baa8c5e8e0cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48350c9f896c18a64f27867ca81c9be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9b5000160a94dc4951989a2f51c9d5c.png)
(1)若命题p为真时,求实数a的取值范围;若命题q为假时,求实数a的取值范围;
(2)如果命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
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【推荐2】已知命题
解集为
,命题q:方程
表示焦点在x轴上的双曲线.
(1)若命题
为假命题,求实数
的取值范围;
(2)若命题“p或q”为真,命题“p且q”为假,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cb9e3469d24dc21df02ffdbebc062b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13354fb130f5019bf7dfa08a1c896ecd.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若命题“p或q”为真,命题“p且q”为假,求实数m的取值范围.
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解答题-问答题
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名校
解题方法
【推荐1】设全集
,已知集合
,
.
(1)求
;
(2)已知集合
,若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3196da392a4d5581ccd4d101a6e2dd3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50b81f4e73eadcae463e743bac580912.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f69fb4c5488c4547adaefab1bd618c5d.png)
(2)已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55c9a0170c9d1ee0adf654117605325.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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较易
(0.85)
【推荐1】已知集合
,集合
.若
是
的充分不必要条件,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572598079340544/1572598085582848/STEM/0a512454389345c2bf145da4a18cba1a.png)
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572598079340544/1572598085582848/STEM/bd6aa575ec474172b355567e101eee77.png)
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572598079340544/1572598085582848/STEM/c66c534da9384facadd532463a3a8ee8.png)
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572598079340544/1572598085582848/STEM/fe23001bab1b4e18ab408316b2bc65d3.png)
![](https://img.xkw.com/dksih/QBM/2016/4/19/1572598079340544/1572598085582848/STEM/c707ff1706ff473fa5e5defc4138f32f.png)
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