解题方法
1 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)求不等式
的解集;
(2)若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2fcc9c4711b12851a5e50795b3fc4c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2aceeef31d88887cb13b1a02c1b938c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a5bd952d2ca688567cd8c90c9dc1ac6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
2 . “曼哈顿距离”是十九世纪的赫尔曼•闵可夫斯基所创词汇,其定义如下:在直角坐标平面上任意两点
的曼哈顿距离
,则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c913b3abbf53d81fcf25bf83d4ae3756.png)
A.若点![]() ![]() |
B.若点![]() ![]() ![]() ![]() |
C.若点![]() ![]() ![]() ![]() |
D.若点![]() ![]() ![]() ![]() ![]() |
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3 . 已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc63193d3c686f63aa56186dd777a6e.png)
(1)解不等式
;
(2)若
,求证:
,使得
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cc63193d3c686f63aa56186dd777a6e.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188281cc0c7af6e95c32b9bbb94ffc21.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a57e060f61f7efa54982bda67db483a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02491f9709f00a1bc169278fbe01f576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52eaacd91c25b6d91415aa741f821f96.png)
您最近一年使用:0次
解题方法
4 . 已知函数
.
(1)求不等式
的解集;
(2)若存在实数
,使不等式
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9180691d1fc20f4612aa616b4b1dae5e.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a5fd7535c215391f149fb9e47e742df.png)
(2)若存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47170d3e143615312945dbe012eb36c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-07-13更新
|
212次组卷
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2卷引用:陕西省渭南市临渭区2022-2023学年高二下学期期末文科数学试题
22-23高二下·陕西榆林·期末
解题方法
5 . 设函数
.
(1)求不等式
的解集;
(2)若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8631b3be45ed183850be36929ab09d2.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04005072a28f26bdfe69a6a2d2b4059d.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47618452edf72ca4cd547c2203170bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a00b6fa7bc182270cf393f260f3f4a.png)
您最近一年使用:0次
解题方法
6 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e838534eb49726d16b80ac20f436c60f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188281cc0c7af6e95c32b9bbb94ffc21.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26cf44f6eb3a0b07394cb8eafaf08a52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-07-11更新
|
163次组卷
|
4卷引用:陕西省汉中市2022-2023学年高二下学期期末文科数学试题
解题方法
7 . 已知函数
.
(1)求不等式
的解集;
(2)已知函数
的最小值为
,且
,
,
都是正数,
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4abee03d738d7f3d8d65555fdc94d8f.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0abe4960954bb3144b7e86d4233e747.png)
(2)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48de42fc90f6c80a503d8bea9d4412ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5adf5bfbc5d41a5795e7d2d65d86b603.png)
您最近一年使用:0次
2023-05-13更新
|
409次组卷
|
4卷引用:四川省宜宾市2022-2023学年高二下学期期末数学文科试题
解题方法
8 . 已知函数
的最小值是
.
(1)求
的值;
(2)已知
,
,
且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b85f540cc39abc637c1ac7ddb6bb4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1003dc3cafbe24c093399d1a3f619d84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2b8c7e9bf5f5e050fffb1769c83f0a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9637478a4b3023e608a6ac08ce9d6ffe.png)
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2023-05-12更新
|
279次组卷
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2卷引用:陕西省西安市西咸新区泾河新城第一中学2022-2023学年高二下学期5月质量检测文科数学试题
名校
解题方法
9 . 设不等式
的解集为
,且
,
.
(1)求
的值;
(2)若
、
、
为正实数,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfecd014c8295ff29840af6b7019c045.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0007234d5c4e1e2c5ffaf75d51734df0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c86c7339700b762ba814a67bed5f984d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5873c01192b7d33b7483f444f90b5b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e713a1123df18cf0e70033ebf66c3c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8b26d909a7827e27d2e8ae20099e041.png)
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2023-05-09更新
|
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8卷引用:四川省广安友谊中学2022-2023学年高二第一次“零诊”模拟考试理科数学试题
名校
解题方法
10 . 已知函数
.
(1)求不等式
的解集;
(2)若关于x的不等式
恒成立,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef9faae82288d28761cfe8dc8d9590ec.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a33c8e64e3650140754b22a5596c6c.png)
(2)若关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/956ffc496ebde829908d92263101c1e5.png)
您最近一年使用:0次
2023-05-08更新
|
524次组卷
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6卷引用:四川省绵阳南山中学2022-2023学年高二下学期期末热身考试数学(文)试题