名校
1 . 已知函数
,且
是定义在
上的奇函数.
(1)求实数t的值并判断函数
的单调性(不需要证明);
(2)关于x的不等式
在
上恒成立,求实数b的取值范围;
(3)若
在
上有两个零点
,求证:
且
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b9e381cee106c590bfbd7ee5f8ecb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d09e8117906e8d3b634e04dd6ea010e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(1)求实数t的值并判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b99aad5444a5ae8f6ede73df2796bf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa40b8865fc6621f349fcce91f1b1924.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8938db94f49dcbe0c383fba0241bb0da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd7e88a0a0bb2f88f38633b18a3cd158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b5cbd907176f31048cf8d07ef56323.png)
您最近一年使用:0次
2020-01-09更新
|
538次组卷
|
2卷引用:天津市滨海新区2019-2020学年高一上学期期末数学试题
名校
2 . 用函数单调性定义证明,求证:函数
在区间
上是单调增函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e23cc1c0cdaa6af68c785cf4dcf90c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75e8e1c23498053dece274fc224982d8.png)
您最近一年使用:0次
2019-11-15更新
|
147次组卷
|
2卷引用:黑龙江省哈尔滨市第三中学2019-2020学年高一上学期期中数学试题(国际部)
3 . 对于定义在
上的函数
,如果存在两条平行直线
与![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b700f7c2d54eab7758f1c60de9d8778b.png)
,使得对于任意
,都有
恒成立,那么称函数
是带状函数,若
,
之间的最小距离
存在,则称
为带宽.
(1)判断函数
是不是带状函数?如果是,指出带宽(不用证明);如果不是,说明理由;
(2)求证:函数
(
)是带状函数;
(3)求证:函数
(
)为带状函数的充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ece1b6663ac276728d143bf849a5b54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b700f7c2d54eab7758f1c60de9d8778b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa5c30eb05ec88a0ad0d5ccc000642f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e762379a924f4574e938b352ea0fc809.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c02bc0c74292b1e8f395f90935d3174.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/587882ac081850caa4447c44a7dbb845.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da51ba51157f2b7953f66a3eaaf20e62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2fb40a36a293471742ce75f6b9635b8.png)
(3)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a9f314365b1c1040510d53bea5a7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd9cdea1e995c59e5d3225acad8b4d3c.png)
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解题方法
4 . 函数
的定义域
,且满足对于任意
、![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
,有
,
,且
时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(1)判断
的奇偶性并证明.
(2)求证
在
上是增函数,并求满足
的
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5259b38698a36da71ca43521fe18615e.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/f9105b3dcbeec709c8bb64b7107c0033.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd858820a22d764b2963b1321b5b3f60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ed4485745f1d259a3953c242b9cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fde64f4d3c38e43fbdee24eadc4b0dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(1)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求证
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8857feb8fd9b5ad4c18d21152736d02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a7b3477a9a582db6c0ce9844ce38c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
5 . 已知函数f(x)=
,其中c为常数,且函数f(x)的图象过原点.
(1)求c的值,并求证:f(
)+f(x)=1;
(2)判断函数f(x)在(-1,+∞)上的单调性,并证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/802f4adf7c33387219bf1cf370aca9db.png)
(1)求c的值,并求证:f(
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95fcfaf750395f9e5b843f017aab25d9.png)
(2)判断函数f(x)在(-1,+∞)上的单调性,并证明.
您最近一年使用:0次
6 . 已知函数
,
,
,其中e为自然对数的底数,
.
试判断
的单调性,并用定义证明;
求证:方程
没有实数根.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bd1124f8423c3e35e0b0ce589f2c49c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4187fbea6847d15e70b9ee0bc45db2f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/959f019ced15fee01049607a897aae83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf69c093a545318ad5908780c5ee67d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae8df65891fe8c9b97164880b7f331f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/755ba949f33ac8b471276e3bfacaf8e4.png)
您最近一年使用:0次
名校
解题方法
7 . 已知函数
.若对任意实数
,都有
,且当
恒成立.
(1)判定函数
的奇偶性,并证明你的结论;
(2)求证:函数
在
上是增函数;
(3)解关于
的不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/582dd334d519999555ed98e60dbd6567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63cb59d5f3eb16beb379672fde5f170.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab0c6f119137e1b6760d55956d99d963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bed35af28313885be08105433a4a7f1.png)
(1)判定函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
(3)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd663889c7132153570e9b388f2938a7.png)
您最近一年使用:0次
2018-01-06更新
|
185次组卷
|
3卷引用:安徽省六安市舒城中学2017-2018学年高一上学期第一次月考数学试题
安徽省六安市舒城中学2017-2018学年高一上学期第一次月考数学试题(已下线)黄金30题系列 高一年级数学(必修一+必修二) 大题易丢分河南省郑州外国语学校2020-2021学年高一上学期第一次月考数学试题
8 . 已知函数
.
(1)求证:
是奇函数;
(2)判断
的单调性,并证明;
(3)已知关于
的不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8dd16a771edbedeaca1d28d25a25089.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa6024d1514f7598e197ad3d7f8d720.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
9 . 给出集合
.
(1)若
,求证:函数
;
(2)由(1)分析可知,
是周期函数且是奇函数,于是张三同学得出两个命
题:命题甲:集合
中的元素都是周期函数.命题乙:集合
中的元素都是奇函数. 请对此
给出判断,如果正确,请证明;如果不正确,请举反例;
(3)若
,数列
满足:
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
,数列
的前
项
和为
,试问是否存在实数
、
,使得任意的
,都有
成立,若
存在,求出
、
的取值范围,若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2797a0dde20f22497c6190d08c71b741.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c6d8eccab2b897f45885ed81195248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5314a9d2205a2beba0dcffb8fd943b18.png)
(2)由(1)分析可知,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c6d8eccab2b897f45885ed81195248.png)
题:命题甲:集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
给出判断,如果正确,请证明;如果不正确,请举反例;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e96f3ea0467dc6393d7c4b602175a394.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5fb8208a95205a6437385ba884547a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/039e4fe671d61e59b96ee525c9df43e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2693734765399876e9e93cdb110231c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
和为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab958eede2dbad749ba70bb230c88fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5014429b696a37a9461b66f22b1800.png)
存在,求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
您最近一年使用:0次
解题方法
10 . 设函数
定义在
上,对于任意实数
,
,恒有
,且当
时,
.
(1)求
的值.
(2)求证:对任意的
,有
.
(3)证明:
在
上是减函数.
(4)设集合
,
,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ac82501b461d044f78e7ae5b86cd3c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5456d544e2f8d22c08f3ccee002dad4a.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54b6a060d6c51a328341df76013bd89.png)
(2)求证:对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
(4)设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34f4d43634c9b34cf3a7aa58ef9f68a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0061c00ac16b749237aebb6c55a4257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次