1 . 已知函数
.
(1)判断
的奇偶性;
(2)用单调性的定义证明
为
上的增函数;
(3)求满足不等式
的实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6406c890e3007c5f9ea5bdda9877bb1.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)用单调性的定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(3)求满足不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c33a5a4884797bc6bfaaab6ad7ca02c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-11-26更新
|
629次组卷
|
2卷引用:湖北省孝感市八校联考2017-2018学年高一上学期期中考试数学(文)试题
名校
解题方法
2 . 已知函数
的定义域为
,当
时,
,且对任意正实数
,满足
.
(1)求
;
(2)证明
在定义域上是减函数;
(3)如果
,求满足不等式
的
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48fc13771797239257146d129efb6bfd.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74156327e5659301f391814605688899.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97bc04339c58452ad1cfeba2dae5a75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8f0c1cf5cf6c6c9520e16ee6d4bf284.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
名校
3 . 设
的定义域为
,对于任意正实数
恒
,且当
时,
.
(1)求
的值;
(2)求证:
在
上是增函数;
(3)解关于
的不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/280860dd039e1305a5ccc455f63e8223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00f0c51e0c50b126b78b84b966930699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b2701c75c8b60580e412778caaa45fa.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9347bb4ffedcbea2f4c16d047a138d75.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f7a9012a7e0d7410c01dfc57779439f.png)
您最近一年使用:0次
2017-10-22更新
|
784次组卷
|
4卷引用:河北省辛集中学2017-2018学年高一10月月考数学试题
名校
解题方法
4 . 已知函数
的定义域是
.
(1)判断
在
上的单调性,并证明;
(2)若不等式
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dbd65db168748a13e06ea75a969c42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6e9ca1bdc593b4ce172a539bc585e97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2017-11-25更新
|
398次组卷
|
2卷引用:江西省赣州市寻乌中学2017-2018学年高一上学期期中考试数学试题
解题方法
5 . 已知定义在
上的函数
满足对任意
都有
,且当
时,
.
(1)求
的值;
(2)判断
的单调性并证明;
(3)若
,解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0102c694f0d246336867e2fe17116909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711d6e4d873ff21b365e9ed00982447a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ed85d47b4f488a9b5e211938cc5424.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce6c24951c70fd3260e80338c80a173.png)
您最近一年使用:0次
6 . 将函数
的图象的纵坐标不变,横坐标缩短为原来的
,得到函数
的图象.已知函数
.
(1)若函数
在区间
上的最大值为
,求
的值;
(2)设函数
,证明:对任意
,都存在
,使得
在
上恒成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2b9643da0c0fea4f099f9a9133d6076.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56d266a04f3dc7483eddbc26c5e487db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7629bf9358f20feafed9eca7c5fba993.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b59be4b92f5a66ed927776dfb100e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc750437882f25f6c57bb5e24c377b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bca4be345087f993a4078e16c16608e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/334dc3176c8496ea8dea9090d7bac338.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28a037072e349d274965d4f5295e4359.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfbb21997037d6c236a7f0679b9ea21.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18dc382fd785e229aaf6d80e56ae8395.png)
您最近一年使用:0次
名校
7 . 设函数
,
.
(1)若
,且
在区间
上单调递增,求实数
的取值范围;
(2)若
且
,求证:
在区间
上有且仅有一个零点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f5deea7de2d0a555cca4771536bcae5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d82f7ead32ee4f4a446e143236c8030.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db4ea1dcb63b22cf4e917df5db581e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dccfb2c09b18c6490110c58587ae11c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0efc156e169373541bd7d070a84a6f2d.png)
您最近一年使用:0次
2017-03-29更新
|
909次组卷
|
2卷引用:河北省衡水中学2017届高三下学期第四周周测数学(文)试题
11-12高一上·河南许昌·期末
名校
8 . 若非零函数
对任意实数
均有
,且当
时,
.
(1)求证:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)求证:
为减函数;
(3)当
时,解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db7387dec34f24cacb1cd95c433e8a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5be1d8c6384d7fabddb693b2b7fcdf4a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e37c94f22f621f6952e100cd6c2d3b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4422ee238e091b2f58a9aa4ca0c7a11.png)
您最近一年使用:0次
11-12高一上·江苏淮安·期中
解题方法
9 . 已知函数
.
(Ⅰ)当
时,利用函数单调性的定义证明
在区间
上是单调减函数;
(Ⅱ)若函数
在区间
上是单调增函数,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76024312b2ad17fda4aefdef64dfb794.png)
(Ⅰ)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48adb8a59b5c02fad5eada1b35171cf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/870ebc2f7aabb028024894568d749934.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2019高三·江苏·专题练习
10 . 已知函数
.
(1)求证:函数y=f(x)在(0,+∞)上是增函数;
(2)若f(x)<2x在(1,+∞)上恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c64353879d7ca5b30ba715a1f57664bd.png)
(1)求证:函数y=f(x)在(0,+∞)上是增函数;
(2)若f(x)<2x在(1,+∞)上恒成立,求实数a的取值范围.
您最近一年使用:0次