利用函数求下列不等式的解集:
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a0ab4bf53b653678fd56c08c6f3942.png)
(2)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94a0ab4bf53b653678fd56c08c6f3942.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a09353dff6bcb2bf4bc677b8bc6862e.png)
2020高一·全国·专题练习 查看更多[1]
(已下线)【新教材精创】3.2 函数与方程、不等式之间的关系 教学设计(2)-人教B版高中数学必修第一册
更新时间:2023-10-18 10:45:47
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【知识点】 解不含参数的一元二次不等式解读
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解答题-问答题
|
较易
(0.85)
【推荐1】已知
:
;q:
.
(1)若
是
的充要条件,求实数
的值;
(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/3535308de7f62317c02ef256e2bbebd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef08b063ece6e3721398bf44d5fbbbb8.png)
(1)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)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e26b38e357c7d985656ba7bb3c794a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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较易
(0.85)
名校
解题方法
【推荐2】已知关于x的不等式
的解集为A,不等式
的解集为B.
(1)若
,求集合A;
(2)若
,求正数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfd8a97f91dc27c569b9beee2ac17f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0153f1f52c440bb25e9d644bf39f57e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
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