名校
1 . 已知
是
上的奇函数.
(1)求
.
(2)判断
的单调性(不要求证明),并求
的值域.
(3)设关于
的函数
有两个零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd5708ed9ddd09561b77a500182ba46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(3)设关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b27ed76585fda6554a9b008af3ff968.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
您最近一年使用:0次
2018-11-18更新
|
1103次组卷
|
2卷引用:【全国百强校】湖北省沙市中学2018-2019学年高一上学期期中考试数学试题
2 . 已知函数
.
(Ⅰ)求函数f(x)的定义域,判断并证明函数f(x)的奇偶性;
(Ⅱ)是否存在这样的实数k,使f(k-x2)+f(2k-x4)≥0对一切
恒成立,若存在,试求出k的取值集合;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94db89071c437278ab118fe9b9088229.png)
(Ⅰ)求函数f(x)的定义域,判断并证明函数f(x)的奇偶性;
(Ⅱ)是否存在这样的实数k,使f(k-x2)+f(2k-x4)≥0对一切
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec93c483a64f5dd38ea296a84574841.png)
您最近一年使用:0次
2019-01-11更新
|
1154次组卷
|
2卷引用:【校级联考】浙江省温州市“十五校联合体”2018-2019学年高一上学期期中联考数学试题
解题方法
3 . 设
,
,
为实数,且
,若
,
满足
,试写出
与
的关系,并证明这一关系中存在
满足
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987656883405a6d641bcd1ce04ed54db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c900e301c36919414b2564305e20f44.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44040b6eb41b711bca46c9d8f4c7e044.png)
您最近一年使用:0次
解题方法
4 . 已知
为奇函数,
为偶函数,且
.
(1)求函数
及
的解析式;
(2)用函数单调性的定义证明:函数
在
上是减函数;
(3)若关于x的方程
有解,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/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94ed64bf364c7bdf6c461fdbd5f6631.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)用函数单调性的定义证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab1242ec96ac54e2fd418988d5190a88.png)
(3)若关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f4f509ae8c376c9f1dd8be62f933eaf.png)
您最近一年使用:0次
名校
5 . 知
函数
(
且
)的图象经过点
.
(1)求函数
的解析式;
(2)设
,用函数单调性的定义证明:函数
在区间
上单调
递减.
![](https://img.xkw.com/dksih/QBM/2017/4/17/1667780025802752/1669353155371008/STEM/632af60a12134c21a6a272751f8515d8.png?resizew=2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17ac01b1e9bcfdf9e70034b4220a22aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4b47463e82cd5a3630c266df0e8f450.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e80bd19c51fc12e19b7ba5fd63efdc5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd467486709aa9b78a1ae938fa92ca74.png)
![](https://img.xkw.com/dksih/QBM/2017/4/17/1667780025802752/1669353155371008/STEM/632af60a12134c21a6a272751f8515d8.png?resizew=2)
您最近一年使用:0次
解题方法
6 . 设
,
是函数
的图像上的任意两点.
(1)当
时,求
的值;
(2)设
,其中
,求
;
(3)对于(2)中的
,已知
,其中
,设
为数列
的前n项的和,求证
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f6470c6a4349ea591ce2bbcd93199f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee844c70ab064971860fb0a2b00acb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2eabd6f2b9add9d973e3c7b004ad11e.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e8d8441014892f9ad3dbaad3f89774e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d58b0e00d782782712e3ba9076ad8f3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d00ddfeda0209b335a6bb09a7eef668a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(3)对于(2)中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f84541d2c89a255d63d30c67a885a0ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c49337d2a78b1d0b611cc940b1b136c5.png)
您最近一年使用:0次
解题方法
7 . 设
为奇函数,
为常数.
(1)求
的值;
(2)判断
在区间(1,+∞)上的单调性,并证明你的结论;
(3)若对于区间(3,4)上的每一个
的值,不等式
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cb9fbd457bbc6727316406603721c76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(3)若对于区间(3,4)上的每一个
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a3fc9c353fd2e294d615fc5b4f3914.png)
您最近一年使用:0次
8 . 已知函数
(
)是偶函数.
(1)求实数
的值;
(2)证明:对任意的实数
,函数
的图象与直线
最多只有一个公共点;
(3)设
,若
与
的图象有且只有一个公共点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/556e02fbcc2e08fa6e48893c09a31843.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/822c62241dcb6c689cb19a259e33e82d.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(2)证明:对任意的实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47fa0bd4abd1c84b481044538fc17151.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9916d5fa51b7127c14908997eb7bba7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次