名校
解题方法
1 . 已知函数
.
(1)解关于x的不等式
;
(2)当
时,对∀
,都有
恒成立,求实数t的取值范围;
(3)当
时,对∀
,都有
恒成立,求实数t的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80f669a2a8d440becc47fadad8b07235.png)
(1)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14b90e98bc0a6e0d47c2a4b30d193f28.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b2d3722725e8293bb801a94e27389d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfbe2eb6c502d3d304bbe3c95b54061.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6bb0835315506ba6eff26f69c6bea62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475e9df64881c182b77bbd8ccee396f3.png)
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2022-07-04更新
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3卷引用:黑龙江省齐齐哈尔部分学校2022-2023学年高一上学期第一次月考数学试题
名校
解题方法
2 . 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)
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2022-11-06更新
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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
3 . 已知函数
在区间
(
)上的最大值为
,最小值为
,记
.
(1)求
的值;
(2)设
(
).
①若
,试写出方程
的一个解;
②若
,求函数
的零点个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4cf09da768a659c25700eeb0fd08c46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d506b5bc2b8ca74deb11ffe51aaa5e12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf039c46a25e331446c6ee1e9af3c82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5dc99a0493caf8b65827518c965e8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b075efa175a26b8deae739f1bd7cab52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a21103513520dc13e50c353ac98234d3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5bbe8f9526a8b16f730e8a45064fe5d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af0fad3e5959a6137d2b830ca0babede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/698eb513eca33513eaffec96b7a9871b.png)
②若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87486f1fa51d9de597928723162a89ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0225bca34eaf19544939b29153aac1.png)
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2022-06-19更新
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3卷引用:黑龙江省牡丹江市第一高级中学2022-2023学年高一上学期期末数学试题
名校
4 . 已知
,函数
.
(1)若关于
的方程
的解集中恰有两个元素,求
的取值范围;
(2)设
,若对任意
,函数
在区间
上的最大值与最小值的和不大于
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d47a5b23ceee45785c0e1322a1728f.png)
(1)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43e9db9750a44fcef925672cf654dbec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/992e2c977fb9f57d0428cc073886b05d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e2436b7c8addbce749a8e4abdf69344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/494333cc49e1c0f1c33c9a4a916ca771.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2022-03-28更新
|
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