名校
解题方法
1 . 定义区间
、
、
、
的长度均为n-m,其中n>m.
(1)若不等式组
的解集构成的各区间的长度和等于6,求实数t的范围;
(2)已知实数a>0,求满足
的x构成的各区间的长度之和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd4d438ae7d4da0e100bb92d622c866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a381cebfeee07ae150cdeff6e7a64d.png)
(1)若不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7754c04141cd52d380925440f3e7281.png)
(2)已知实数a>0,求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9795eba7db63c2bbec7166b354163e84.png)
您最近一年使用:0次
2022-11-06更新
|
381次组卷
|
2卷引用:黑龙江省齐齐哈尔市克东县“五校联谊”2022-2023学年高一上学期期中考试数学试题
名校
解题方法
2 . 已知全集
,集合
,集合
.
(1)求
及
;
(2)若
的解集为
,若
是
的充分条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3202f0f063e27fce18e92746453095be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e9fcf62ad951dfb8f39a54f087c65f8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61410f474533fe21cfe5354b747a5de9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e642598f0635799e4c5fbb118613852a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-12-03更新
|
540次组卷
|
2卷引用:黑龙江省哈尔滨市第三中学2021-2022学年高一上学期第一模块(期中)考试数学试题
名校
解题方法
3 . 已知
,不等式
的解集为
,不等式
的解集为A,
(1)求实数k的值;
(2)设集合
,若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b3924ecd40ce359494f90c28039cf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa175c2e4b215a1adc68377a0827d6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d82ec141c8e84ac00891f48577052e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2277165e6d492ae07c2ad9eba2fceabc.png)
(1)求实数k的值;
(2)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f478948da1e3ebe0efd9e18ee53aa9d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
您最近一年使用:0次
2020-02-12更新
|
177次组卷
|
2卷引用:黑龙江省鹤岗市第一中学2020-2021学年高一10月月考数学试题
14-15高一上·黑龙江绥化·阶段练习
4 . 已知关于
的不等式
的解集为
.
(1)若
,求集合
;
(2)若
且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6126592d0f3032e08480ee811ea93af1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a92ba9085f0e167023c4e27236ed539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46adf2a135d36b7a099b9d010d04f86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
5 . 设不等式
的解集为集合A,关于
的不等式
的解集为集合B.
(Ⅰ)若
,求实数
的取值范围;
(Ⅱ)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f4e05eabe40863c46b36183838fdcb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f064c19b07159fb5a1b050fdf5c6d94.png)
(Ⅰ)若
![](https://img.xkw.com/dksih/QBM/2015/11/12/1572286379671552/1572286385774592/STEM/c818be7143a74a7885bdb0be78337cc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(Ⅱ)若
![](https://img.xkw.com/dksih/QBM/2015/11/12/1572286379671552/1572286385774592/STEM/060618d27e4b42769afabd4fe0d728e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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