名校
解题方法
1 . 已知函数
.
(1)解不等式
;
(2)若
,
满足
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a8e2b28d57814feeebfc4a1134358f6.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f97a1212828a5aade4637eb80cc09bb.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/728697bd9af445ae7525af9168fdf816.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33bd24e647a626899a243a3f3984f90a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/475c9073257b3d0760e2c6051a82d592.png)
您最近一年使用:0次
2023-10-18更新
|
240次组卷
|
2卷引用:福建省厦门第一中学2023-2024学年高一上学期第一次适应性练习数学试题
名校
2 . 已知函数
和
有相同的最小值,(e为自然对数的底数,且
)
(1)求m;
(2)证明:存在直线
与函数
,
恰好共有三个不同的交点;
(3)若(2)中三个交点的横坐标分别为
,
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/291c25fc6a69d6d0ccfb8d839b9b4462.png)
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0166bbd15fa298c0d6a90a639108f4e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6db457ee2d041b542c3eeff31d94cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11204e2fb6e560bf7a4ca26eaebfc526.png)
(1)求m;
(2)证明:存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af79f45b5880c72a349500da9d8e118d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
(3)若(2)中三个交点的横坐标分别为
![](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/291c25fc6a69d6d0ccfb8d839b9b4462.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c06ceee2b1e227de025476eee95672.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5b965b3f27889e139013aa8c8f8fe3.png)
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2023-11-10更新
|
355次组卷
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4卷引用:福建省厦门第一中学2023-2024学年高一上学期期中考试数学试题
3 . 函数
的定义域为
,若
,满足
,则称
为
的不动点.已知函数
.
(1)试判断
不动点的个数,并给予证明;
(2)若“
”是真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3102c0a2f53b80f9dddbf9352537e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f66a2b3d90f0d935d6c8ebaf675349.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91d251ac882680a20107dbcc43af885c.png)
(1)试判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/696307011acc2623cedb08b4b366e553.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
4 . 已知函数
.
(1)求
的值;
(2)写出函数
的单调递减区间(无需证明);
(3)若实数
满足
,则称
为
的二阶不动点,求函数
的二阶不动点的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bc7ef1d7558a68f52de1f21542f43fe.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2744646ce1af08aa62b4f66479d87d1.png)
(2)写出函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f949b9a15ad3cdb3511fdb803c707bf.png)
(3)若实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374054f44b9a52668f91ac7601e63c06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79b752f0f189e5d8666daea73e145dff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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2020-12-30更新
|
704次组卷
|
5卷引用:江苏省泰州中学2020-2021学年高一上学期期中数学试题
江苏省泰州中学2020-2021学年高一上学期期中数学试题福建省龙岩市第一中学2021-2022学年高一上学期第一次月考数学试题福建省连城县第一中学2022-2023学年高一上学期第一次月考数学试题江苏省盐城市响水中学2022-2023学年高一上学期期中数学试题(已下线)第08讲 函数的概念及其表示(6大考点)-2022-2023学年高一数学考试满分全攻略(人教A版2019必修第一册)
名校
解题方法
5 . 设数列:A:a1,a2,…,an,B:b1,b2,…,bn.已知ai,bj∈{0,1}(i=1,2,…,n;j=1,2,…,n),定义n×n数表
,其中xij
.
(1)若A:1,1,1,0,B:0,1,0,0,写出X(A,B);
(2)若A,B是不同的数列,求证:n×n数表X(A,B)满足“xij=xji(i=1,2,…,n;j=1,2,…,n;i
j)”的充分必要条件为“ak+bk=1(k=1,2,…,n)”;
(3)若数列A与B中的1共有n个,求证:n×n数表X(A,B)中1的个数不大于
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d80a140f78215fd78b28b2f056621b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f07de86b00421ff253924b24f15b7047.png)
(1)若A:1,1,1,0,B:0,1,0,0,写出X(A,B);
(2)若A,B是不同的数列,求证:n×n数表X(A,B)满足“xij=xji(i=1,2,…,n;j=1,2,…,n;i
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411837b4b3078d05b43cb0439259a362.png)
(3)若数列A与B中的1共有n个,求证:n×n数表X(A,B)中1的个数不大于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c863b250e389c3992dd27963a0b78900.png)
您最近一年使用:0次
2020-06-22更新
|
624次组卷
|
3卷引用:北京市东城区2020届高三第二学期二模考试数学试题
6 . 已知
,函数
.
(1)当
时,画出函数
的大致图像;
(2)当
时,根据图像写出函数
的单调减区间,并用定义证明你的结论;
(3)试讨论关于x的方程
解的个数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e437f4806a7886a7a33bd03fa4d81577.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
(3)试讨论关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e1ee9e9142a8f9cafbb205fd7495311.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/5/19c892cb-357d-4345-b389-c994eae7ac1a.png?resizew=245)
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7 . 已知关于
的方程
.
(1)求证:无论
取什么实数,这个方程总有两个不同的实数根;
(2)若这个方程的两个实数根
,
满足
,求
的值及相应的
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1a248d6f64317812bf4e4761fc1f7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c32fd52d46f31c434947c611baa9ef20.png)
(1)求证:无论
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若这个方程的两个实数根
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44e696efc432f5f0a416f477d95b8f71.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49e1cad2f00ce41845a8e327f8c6435d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b90c5cf268aecb16c0fa56e8033dad6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79135017d42246c6ea8eeb50deb6a19e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/788ca95e86e64f9df274f0c957772fc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccf18ecada3530dde5dc00b560b3eb22.png)
您最近一年使用:0次
名校
8 . 已知函数
在
上是减函数,在
上是增函数
若函数
,利用上述性质,
Ⅰ
当
时,求
的单调递增区间
只需判定单调区间,不需要证明
;
Ⅱ
设
在区间
上最大值为
,求
的解析式;
Ⅲ
若方程
恰有四解,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18426cffd99829508032275c2e033810.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fef9380b394a4bd829c83a5a5b4c859.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d45793b96fcc2aa90c8555b1c5157af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d894b35f3636c16c3455e809a867d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5036e26e77152eb05955d2aceca93950.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69c13a09123ae873e0b0501aaecc507e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4c7a1c25073f5b206135366a1fedc98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06dffc1e1569287ae3a29dcad8ce1401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4845ea2f5b15977cf713a1794b596589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20b982ddacd48538d93a6e6ebb10395d.png)
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2019-02-07更新
|
279次组卷
|
4卷引用:【校级联考】浙江省温州九校联盟2018-2019学年高一第一学期期末数学试题
真题
9 . 定义域为R,且对任意实数
都满足不等式
的所有函数
组成的集合记为M,例如,函数
.
(1)已知函数
,证明:![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/f005048aef5b4c00bfd04be65aea1a50.png?resizew=36)
;
(2)写出一个函数
,使得
,并说明理由;
(3)写出一个函数![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/f005048aef5b4c00bfd04be65aea1a50.png?resizew=36)
,使得数列极限
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/5274506c4be74f0382ffb8c9c3adb8ce.png?resizew=37)
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/016ed019eee54f78ad46ffa2f0de3662.png?resizew=183)
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/f005048aef5b4c00bfd04be65aea1a50.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/d52958cc2d114b44942f70bb5084e671.png?resizew=123)
(1)已知函数
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/fb8baade7cdb4d2b95b88a730759d893.png?resizew=120)
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/f005048aef5b4c00bfd04be65aea1a50.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/1abe62282f8d4473a2d68380e985fff9.png?resizew=33)
(2)写出一个函数
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/f005048aef5b4c00bfd04be65aea1a50.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/0eec3ffa469c462d8d623a1c84694233.png?resizew=68)
(3)写出一个函数
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/f005048aef5b4c00bfd04be65aea1a50.png?resizew=36)
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/1abe62282f8d4473a2d68380e985fff9.png?resizew=33)
![](https://img.xkw.com/dksih/QBM/2011/1/11/1569961689497600/1569961694953472/STEM/1788617445624ded8170a9ac3b8e4e78.png?resizew=183)
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11-12高三·上海奉贤·期末
10 . 函数
,定义f(x)的第k阶阶梯函数
,其中k∈N*,f(x)的各阶梯函数图象的最高点Pk(ak,bk),最低点Qk(ck,dk).
(1)直接写出不等式f(x)≤x的解;
(2)求证:所有的点Pk在某条直线L上.
(3)求证:点Qk到(2)中的直线L的距离是一个定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/647103b243eb9c05762f7e6ef0649449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9dc44ba2a4f5f09f3c5e77b1975ad54.png)
(1)直接写出不等式f(x)≤x的解;
(2)求证:所有的点Pk在某条直线L上.
(3)求证:点Qk到(2)中的直线L的距离是一个定值.
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