1 . 已知函数
(
,
),![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9f93086355e85c381dcd7f41dadf5.png)
(
).
(1)如果
是关于
的不等式
的解,求实数
的取值范围;
(2)判断
在
和
的单调性,并说明理由;
(3)证明:函数
存在零点q,使得
成立的充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973fc3abf35cab7af01e781bb2e7cd48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60d9f93086355e85c381dcd7f41dadf5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca2e941780c5c66920b68808d47bea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
(1)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf9c380edc9b8ad928662eeab23c86c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dc9ede2e55724383dd1093fc7fcdb59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38a9ce856475eea193ecaabe2e4be583.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c346a101f2602fe7ae0b4f2660f83831.png)
(3)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71c30572af5d28991fedd6692a13dc0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f2b5aa8dd9dad7f371f0d7ab7b18dd.png)
您最近一年使用:0次
名校
2 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994ca4aeb0d0e25816eff9f3ce8819aa.png)
,且满足
.
(1)判断函数
在
上的单调性,并用定义证明;
(2)设函数
,求
在区间
上的最大值;
(3)若存在实数m,使得关于x的方程
恰有4个不同的正根,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/994ca4aeb0d0e25816eff9f3ce8819aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf8197e4f3fd18815045d29c357a863.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c81a0bb9174e7784a21e87cc0e07253.png)
(1)判断函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d79fe3414b32bbd1190b41ed8307f905.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d6e28dbfcdd6fb66b9ff759be044287.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdac32e80a6c6ca7d2b45b2959f9514d.png)
(3)若存在实数m,使得关于x的方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef19c74a34edf1db7837386fb8dca87c.png)
您最近一年使用:0次
2018-02-01更新
|
1160次组卷
|
4卷引用:上海市上海交通大学附属中学2019-2020学年高一上学期期中数学试题
名校
3 . 已知函数
;
(1)当
时,若
,求
的取值范围;
(2)若定义在
上奇函数
满足
,且当
时,
,
求
在
上的反函数
;
(3)对于(2)中的
,若关于
的不等式
在
上恒成立,求实
数
的取值范围;
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f9e079d16cd4a7942c21de7880dc641.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3710bb5777521ca27daf5a3e049ee0b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)若定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4919b9347ad5b2c4a65d20024c64e4fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e46371f310e03a153a1698aad9d4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2401f1358466ad761052b98564ae5873.png)
求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8715d69eba6fe55144b769fa15f06124.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
(3)对于(2)中的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c371ceb1d98ad4a769d556a86b0a735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2017-11-21更新
|
667次组卷
|
3卷引用:上海市复旦大学附属中学2017届高三上学期第一次月考数学试题
名校
4 . 设
是定义在
上的奇函数,且对于任意的
,
恒成立,当
时,
,若关于
的方程
有5个不同的解,则实数
的取值范
围是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/545931b962cf570712d04888b57093f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1376168658dbe7f5b7f4d75fb1db545a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d761c4444f5eac17133caaf19d6b9ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95e9ecfdf2ec90ea96e104158aec81c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
围是
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名校
5 . 对定义在[0,1]上的函数f(x),如果同时满足以下三个条件:
①对任意x∈[0,1],总有f(x)≥0;
②f(1)=1;
③若x1≥0,x2≥0,x1+x2≤1,有f(x1+x2)≥f(x1)+f(x2)成立.
则称函数f(x)为理想函数.
(1)判断g(x)=2x﹣1(x∈[0,1])是否为理想函数,并说明理由;
(2)若f(x)为理想函数,求f(x)的最小值和最大值;
(3)若f(x)为理想函数,假设存在x0∈[0,1]满足f[f(x0)]=x0,求证:f(x0)=x0.
①对任意x∈[0,1],总有f(x)≥0;
②f(1)=1;
③若x1≥0,x2≥0,x1+x2≤1,有f(x1+x2)≥f(x1)+f(x2)成立.
则称函数f(x)为理想函数.
(1)判断g(x)=2x﹣1(x∈[0,1])是否为理想函数,并说明理由;
(2)若f(x)为理想函数,求f(x)的最小值和最大值;
(3)若f(x)为理想函数,假设存在x0∈[0,1]满足f[f(x0)]=x0,求证:f(x0)=x0.
您最近一年使用:0次
2016-12-04更新
|
613次组卷
|
3卷引用:2016届上海市七校高三上12月联考理科数学试卷
名校
6 . 若对任意
,都有
,那么
在
上………………
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0be07495dbc744e1ecabac66f748218.png)
![](https://img.xkw.com/dksih/QBM/2015/12/30/1572409109168128/1572409114722304/STEM/975423c7e2e044f48cd655ddbd43b237.png)
![](https://img.xkw.com/dksih/QBM/2015/12/30/1572409109168128/1572409114722304/STEM/b30102778be34d0f9d58ba523290f15e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
A.一定单调递增 | B.一定没有单调减区间 |
C.可能没有单调增区间 | D.一定没有单调增区间 |
您最近一年使用:0次
2016-12-03更新
|
752次组卷
|
7卷引用:2016上海复旦大学附中届高三上期中理科数学试卷
7 . 已知函数
,
.
(1)证明:函数
在区间
上为增函数,并指出函数
在区间
上的单调性.
(2)若函数
的图像与直线
有两个不同的交点
,
,其中
,求
关于
的函数关系式.
(3)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/684decb4a5daf20c4881c29dae472414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41a85b52d149033fa86da61b74146b8.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cbbf00cdf32ac1fa25a3d42975abe41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a799df7794824e81d2885577fae98769.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4ff39dd1dfc9caf911ad0d11ba21d66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e14c11fb081be6d2236200e7328a34bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e4987e9bbb496ab420bb4e1aa6a416.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac22b784a16e23f1ea4a8d05f770235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
![](https://img.xkw.com/dksih/QBM/2015/3/27/1572041679740928/1572041684983808/STEM/de7f6ae054624d01a2b7c1bd1d6d325b.png)
(3)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1019d4ad2e3fb4a7abb66e0e9e55b556.png)
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12-13高三上·福建龙岩·阶段练习
名校
解题方法
8 . 已知函数
;
.
(1)当
时,求函数
在
上的值域;
(2)若对任意
,总有
成立,求实数
的取值范围;
(3)若
(m为常数),且对任意
,总有
成立,求M的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac1d99b9edecc369f6650242507de34.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/028824f55cc135a6ff14e2ac90a929d0.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2edd8edcb21bd41584daf9bb95a5c7.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac4cbc7b067862a3d9c6789b392fc068.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e11fe4dc11c1b544e570409d6d367b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14e70604a89a0bc9543fd1263c3f8691.png)
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11-12高三·上海·阶段练习
9 . 设函数
.
(1)求
的反函数
;
(2)判断
的单调性,不必证明;
(3)令
,当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02d8f265325088c1cfd15033e81517aa.png)
,
时,
在
上的值域是
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e191f58cc012aecb5f59977a2c5df029.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
(3)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d19f9456fb036d61e6dcb17fdf516e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02d8f265325088c1cfd15033e81517aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881f58ceb353ccd4d690e442a9c47877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32d6b59f4796a45963dea76b89c72bea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc402f843459c40b8a24113590e27e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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12-13高三上·上海·期中
10 . 已知函数
在定义域
上是奇函数,(其中
且
).
(1)求出
的值,并求出定义域
;
(2)判断
在
上的单调性,并用定义加以证明;
(3)当
时,
的值域范围恰为
,求
及
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecd87947c7a767e50400d345ef682539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
(1)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59ac3b440b0aeae21a23812ee3e726f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a7a4a037a4dfe973f1eb683d93d799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
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