已知
.
(1)求
的单调区间;
(2)证明对任意
,都有
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e94575d29bc238fd7a4deba2b18d1ee.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)证明对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d229cbec798c9c278a9b5979cb38247.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdd645170999d8e1d39a2513d183c69e.png)
2018高一上·全国·专题练习 查看更多[1]
(已下线)2018年10月20日 《每日一题》人教必修1-周末培优(上学期期中复习)
更新时间:2018-10-22 21:17:24
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相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
为常数
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f8672d5f7c63768539540733e13917.png)
(1)求
的值
(2)写出
的单增区间(不需证明)
(3)若不等式
恒成立。求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa1c03bc3218769493b65dd3be63096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f8672d5f7c63768539540733e13917.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8309cd5e960e276732e9d1069562f651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-作图题
|
适中
(0.65)
【推荐2】已知函数
(
为实常数).
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/c1cf7f1a-334a-4c98-9eb5-be5efb6487e4.png?resizew=182)
(1)当
时,作出
的图象,并写出它的单调递增区间;
(2)设
在区间
的最小值为
,求
的表达式;
(3)已知函数
在
的情况下:其在区间
单调递减,在区间
单调递增.设
,若函数
在区间
上是增函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06e67e43a54b8ce2a2020116af0543bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/6/c1cf7f1a-334a-4c98-9eb5-be5efb6487e4.png?resizew=182)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b081b1439dd4a3f6dafec805b6785700.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
(3)已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dcd1ad9244b232165b7a38d7092c2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e694b4777073dad83bcbd1f351b7b36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca814c56ba2522dcdd73dffcd86580f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3109a3db9931922fda8851ab5875b915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0454e10f9b3d6dd7b98c598d0ee0115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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适中
(0.65)
名校
【推荐1】已知定义在
上的函数
是偶函数,且
时,
.
(1)当
时,求
解析式;
(2)写出
的单调递增区间.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19b833db9cc413446abcfc764778347.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
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适中
(0.65)
名校
【推荐2】已知函数
.
(1)若函数
的定义域是一切实数,求
的取值范围;
(2)若函数
在区间
上的最大值与最小值的差不小于
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09d47a5b23ceee45785c0e1322a1728f.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
【推荐3】定义在
上的偶函数
,当
时,
.
(1)写出
在
上的解析式;
(2)求出
在
上的最大值;
(3)若
是
上的增函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d58567d3cb3137e68b7ff1671cd8433.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33ba27f7e6b87090cf3fd9b1ea9f1712.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
(2)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
|
适中
(0.65)
【推荐1】在直角坐标系
中,记函数
的图象为曲线
,函数
的图象为曲线
.
(1)比较
和1的大小,并说明理由;
(2)利用单调性的定义证明函数
在定义域上单调递增;
(3)试判断曲线
和
交点的个数,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14148cdf90e02dfc4ca801d4c2e17176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ee749fea0db14ce8d1a66f0905fbf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
(2)利用单调性的定义证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05ee749fea0db14ce8d1a66f0905fbf9.png)
(3)试判断曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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适中
(0.65)
【推荐2】已知函数
(
且
).
(1)若函数
的图象经过点
,求
的值;
(2)比较
与
的大小,并写出比较过程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f212e63cafd79ee0a45b0bd5581b723.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/889a5e04c5187fb20415a59ce6adeed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92518014f7abdeabf27637ff7da3df91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d332df514a32721046477078161f1a44.png)
您最近一年使用:0次
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适中
(0.65)
【推荐1】电动出租车司机小李到商场里充电,充电费用由电费和服务费两部分组成,即电费=(电价+服务费)×度数,商场采用按时间分不同时段计算,11:00-13:00时电费是0.50元/度,服务费0.35元/度,13:00-15:00时电费1.15元/度,服务费0.20元/度,假定在充电时候电量是均匀输入的,车主小李充电30度需要60分钟.
(1)小李到商场 12:40开始充电30度,问需要充电费多少.
(2)若小李在某春运期间第
天的收入
近似的满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3eedd1030e1952f342d41364aadb120.png)
第
天的充电费近似的满足
记盈利比=
,试问哪天的盈利比最大.
(1)小李到商场 12:40开始充电30度,问需要充电费多少.
(2)若小李在某春运期间第
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3eedd1030e1952f342d41364aadb120.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb99e7a450e19b32dbd3aa669c8562ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9cb80eec47f288449be833885d4d82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb0fa71e705dd946cfeb826e3a6c4da0.png)
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适中
(0.65)
【推荐2】已知函数
有如下性质:当
时,如果常数
,那么该函数在
上是减函数,在[
上是增函数.
(1)当
时,写出函数
(
)的单调区间;
(2)已知
,
,利用上述性质,求函数
的单调区间和值域;
(3)对于(2)中的函数
和函数
,若对于任意
,总存在
,使得
成立,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5e228803048cbc40f6aa7141d3a80d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89838b74f6d7aa2372d65176f0514bf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91dcc61eb54e7e88e6943688c6782458.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cbeede118c407a800b05757b9a1393e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e5e228803048cbc40f6aa7141d3a80d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab49020c23dd49685bfd1d594584c4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7b99127ea8150d50cc26a62e5445a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)对于(2)中的函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ef2a0dfcf1c053c5a0e45d54e823aaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4361b7baf57ec27b60ac4aa637e16a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8749f112832287b0738dd83c5bf255d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/347ac85769012f89d1f9951684e1d7b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次