已知定义在区间
上的函数
对于任意的
,
满足
,且当
时,
.
(1)求
的值;
(2)判断
的单调性并用单调性定义加以证明;
(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/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca1a2e3aa3607c922862759adba973d.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/67b6e4bbd8bc074d4fd1d73b6be8a98c.png)
更新时间:2023-12-15 17:19:54
|
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解答题-证明题
|
适中
(0.65)
【推荐1】已知函数
.
(1)求
,
的值;
(2)求证:
是定值;
(3)求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3226c0cb1c6fd670c2e815450f2f42d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9abc6b7bbea0782699a36b825b2b1b0d.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce0afc884c3eda222f4b953b2d35b73d.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2095f98bc6da26b779585b0915bc683e.png)
您最近一年使用:0次
解答题-证明题
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适中
(0.65)
名校
解题方法
【推荐2】已知函数
的定义域为
,且对任意的正实数
都有
,且当
时,
,
.
(1)求
;
(2)求证:
为
上的增函数;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfef927a8b2209863f3699d49f93cc4f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/207717d14e7d941837b2613fec7694e3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b158eda7b571588ee5841dcd22c0b5cf.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/490184dc9f1d888efda1e12061503770.png)
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解答题-问答题
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适中
(0.65)
名校
【推荐1】已知:
是
上的奇函数
(1)求
的值;
(2)判断
的单调性,并证明;
(3)设关于
的函数
且
,使得
.求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c00f5b7df36dd6f58a384f65346c00a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/196b07fe2c22c854a9a14c8dbdcf862a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07487b63106bdbb2388d0cc5b66a269e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1f6026ee2623513343c2b750110292.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
【推荐2】已知函数
是定义在
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(1)用定义法证明函数
的单调性
(2)求不等式
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94d71804658ee452aaf7f9db4ef4161b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
(1)用定义法证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求不等式
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解答题-问答题
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适中
(0.65)
【推荐3】已知函数
.
(1)证明:y=f(x)在R上是增函数;
(2)当a=2时,方程f(x)=﹣2x+1的根在区间(k,k+1)(k∈Z)内,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae301cf1c4bf88b2b9ff946c11f8d058.png)
(1)证明:y=f(x)在R上是增函数;
(2)当a=2时,方程f(x)=﹣2x+1的根在区间(k,k+1)(k∈Z)内,求k的值.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐1】已知
的定义域为
,对任意
都有
,当
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c1193d1e793d4aa669eb2180d1952e.png)
(1)求
;
(2)证明:
在
上是减函数;
(3)解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e64541d7f445079207b6f671adc7d662.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e6f5d45adf0314f93a495f037109bbd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11c1193d1e793d4aa669eb2180d1952e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca5890df42eb7838a47ae1625f011b51.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933093b52cca887f597cbe22a5467b11.png)
(3)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1bb2daa1a89f861e3f3f139e6e21ac.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐2】已知函数
是定义在区间
上的奇函数,且
.
(1)求函数
的解析式.
(2)用定义法判断函数
在区间
上的单调性并证明;
(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5bec6e5f8997197659647dda1c6fe9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdc47f2786ed178c1bcf8ff13bfc4739.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23fb90e09994fdc6ab02ed6ba664f31f.png)
(2)用定义法判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b61bb7cb94b4d06f0090df1e365667.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23a8c0e96d50acaecca352e93709f78f.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
解题方法
【推荐3】已知函数
为奇函数.
(1)求实数
的值;
(2)若
,判断并用定义证明函数
的单调性;
(3)设
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在区间
上不存在零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417c3865d9f3af6f724d33802cdf5539.png)
(1)求实数
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(2)若
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(3)设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9f88173ef0c29bedd0155b7893d2474.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次