设函数
,且
.
(1)请说明
的奇偶性;
(2)用定义证明
在
上单调递增.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56bc2d01b53a2ec4e7d0629aed882c44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e27c24244b1fdbf1455087c2ebf41c8b.png)
(1)请说明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)用定义证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ef1b322a7e2dbe40f17a0f9c61ec4aa.png)
更新时间:2023-10-31 18:24:07
|
相似题推荐
解答题-问答题
|
适中
(0.65)
【推荐1】已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a45fa6380040ca1ef709ca8d604e8f.png)
(1)求
的奇偶性;
(2)证明
在区间
上是增函数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a45fa6380040ca1ef709ca8d604e8f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef147a13be8327ff4ea3f0f12b2da4a3.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】f(x)是定义在
上的函数,对x,y∈R都有f(x+y)=f(x)+f(y),且当x>0时,f(x)<0,f(-1)=2.
(1)求证:f(x)为奇函数;
(2)求证:f(x)是R上的减函数;
(3)求f(x)在[-2,4]上的最值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求证:f(x)为奇函数;
(2)求证:f(x)是R上的减函数;
(3)求f(x)在[-2,4]上的最值.
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
名校
【推荐3】已知函数
的定义域为
,并且满足下列条件:
①
;②对任意
,都有
;③当
时,
.
(1)证明:
为奇函数且在R上单调递减;
(2)若
对任意的
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492269c463a2dd4cde7abbaac3e4a64d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5ab4b75fa22deba7fcbcdcb31dd45b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd384d86840b7b158af41f56fe29c7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d957d0e57a6ba2f1cec3c847cd5dbcf7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7c665562a0488434cc90a775efb824.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1】已知函数
.
(1)判断
的奇偶性并证明;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f160226f00c781f63a54b1475d1a8a4e.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37def4ec5e8fe460bda0dd8bc7d1ce3a.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】判断下列函数的奇偶性:
(1)f(x)=x+1;
(2)f(x)=x3+3x,x∈[-4,4);
(3)f(x)=|x-2|-|x+2|;
(4)f(x)=
(1)f(x)=x+1;
(2)f(x)=x3+3x,x∈[-4,4);
(3)f(x)=|x-2|-|x+2|;
(4)f(x)=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bfe902a724a9b220b5c1fac37fd196be.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
.
(1)求函数
的定义域;
(2)判断证明函数
的奇偶性;
(3)解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fedb7eacf51abd6006dc9ecb2312d10.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1fc0e0c597842d3e9e1ec49427c6ba7.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】设
是定义在
上的奇函数,且对任意
,当
时,都有
.
(1)若
,试比较
与
的大小关系;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773ca22fc12ade9e60dbc749ba5cfa73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96bc2eeaca8a8ce4bcce2bff011a11bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d01645cf54dd71aa3d55f8f40c9bdaf.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/432d77fe5ad3032d59a237dd94c8a638.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f484115a9df1b6060d6b14df85c6f38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35770a47ffcba6bf1d94eceabb416d96.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfe0581084e5c62385ad1e9428e1f3fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐2】已知函数
是定义在
上的偶函数,且当
时,
.
(1)求
及
的值;
(2)求函数
在
上的解析式;
(3)若关于
的方程
有四个不同的实数解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be315e528951120e7d551f654d2a1f5e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e38fffbc7ab9882480f4faa72390e23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4474bd87c00ac3ee99ab366527ded109.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
(3)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3b4874cf36b6082ba4d539ff3ee69a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次