已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f136d9473c2b81512a67514893eee48.png)
(1)判断函数
在
上的单调性并证明;
(2)若集合
,对于
都有
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/998c5189421aa8fa0891861985111c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f136d9473c2b81512a67514893eee48.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7334919736e5ed881f691e4ca738b4ce.png)
(2)若集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cf39078c066aa72434c72cc1e03e781.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd170c506a8ce70f550f5751ae016ca6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2c01ac2a7f6ad7e03cb7a61daefab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2022-11-03 13:07:45
|
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f027018fa0116b0e59d0f95f8a8ac6a1.png)
.
(1)判断
的单调性,并证明;
(2)当
时,不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f027018fa0116b0e59d0f95f8a8ac6a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf8197e4f3fd18815045d29c357a863.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e2e79843faf62dde86bf858d1e0569.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bb89c343dd5a5a811b4db2963adb3f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
,
(1) 证明:函数f(x)是R上的增函数;
(2) 求函数f(x)的值域
(3) 令g(x)=
,判定函数g(x)的奇偶性,并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd026951c5a6738d4a1c2890aa34860d.png)
(1) 证明:函数f(x)是R上的增函数;
(2) 求函数f(x)的值域
(3) 令g(x)=
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa60e9e121a53b3fad0dacbda707f3e.png)
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
,对于任意的x,
,有
,且当
时,
.
(1)判断这样的函数是否具有奇偶性和单调性,并加以证明;
(2)若
,
对一切
,(其中
)恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/773932788bfccf3f2a43207a159c33c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18ce23d4f9f61a8b1f99d11f4cd2c1d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e541ea2f855f981c96207070683d388.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a71baf6217604517fd98fa97d0f55b43.png)
(1)判断这样的函数是否具有奇偶性和单调性,并加以证明;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0955df5632cae482804bd29a1211d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d9e70c842c6e50f89e1fab0f633c24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a311fe15043b66dddb23fb5a233fbe3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/546bf2ccabfb49c99472445843939226.png)
您最近一年使用:0次
解答题-证明题
|
适中
(0.65)
解题方法
【推荐1】已知函数
.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/6c1a3d9c-8c44-4b40-bca7-1810488323f4.png?resizew=260)
(1)判断函数
的奇偶性,并证明;
(2)画出函数
的图像;
(3)指出函数
的单调区间,并求出函数
在区间
上的最大值和最小值,并写出在此区间上的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70a152a3239365b88333aa4aa736631e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/6c1a3d9c-8c44-4b40-bca7-1810488323f4.png?resizew=260)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)画出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)指出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2aa311daf7a73f8c45de4462f9d92b6.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
名校
【推荐2】已知定义域为(-1,1)的奇函数f(x)满足f(x+1)=f(x-1),且当x∈(0,1)时,
.
(1)求f(x)在区间(-1,1)上的解析式;
(2)若存在x∈(0,1),满足f(x)>m,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fbd9e52b79fb84c320dc522e13d4f0b.png)
(1)求f(x)在区间(-1,1)上的解析式;
(2)若存在x∈(0,1),满足f(x)>m,求实数m的取值范围.
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐1】已知函数
.
(1)设
,求不等式
的解集﹔
(2)设
,且
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8af2148f8e794c07133f3686c8d6b632.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/640d3bcd10055871a5ec2f442c1030c1.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81e96e15940b524346428b65f18a9946.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
是奇函数,且过点
.
(1)求实数m和a的值;
(2)设
,是否存在正实数t,使关于x的不等式
对
恒成立,若存在,求出t的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1526c93dd57cc356c851a509338a4bff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efca7f1ccd15925cbebb35dd734981a4.png)
(1)求实数m和a的值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd82868cd08da1d0713054d2f12a7bf0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1a2c01ac2a7f6ad7e03cb7a61daefab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25d70d569a3097d652355520910380ea.png)
您最近一年使用:0次