解题方法
1 . 设
,且
.
(1)求
的解析式;
(2)判断
在
上的单调性并用定义证明;
(3)设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbb39c1c994df1bcc277fed63fce574.png)
在
上有两个不同的解
,求集合
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4dc4e3775c850f1c1804f9eb7a70153a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb827f46178762d5293fd818a6db0e43.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/032e3d25c9f38a3cf745fed1ce3297be.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efbb39c1c994df1bcc277fed63fce574.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c238ce891f370e22aa72ec56a108348d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51b85da66243efd91e7c606c42f17da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a1b81be655b7177a9644520b18208e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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13-14高二下·江苏扬州·阶段练习
2 . 定义在
上的奇函数
满足
,且当
,
时,有
.
(1)试问函数
的图象上是否存在两个不同的点A,B,使直线AB恰好与y轴垂直,若存在,求出A,B两点的坐标;若不存在,请说明理由并加以证明.
(2)若
对所有
,
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6855784817151468771f29c0fc38fc9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e998c8b6beba7850fbb881677e2f578d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abb1510002590df6388353fecef472a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d01645cf54dd71aa3d55f8f40c9bdaf.png)
(1)试问函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d4562dac1dd60eba4b86d1c9e17820.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec25b9d7ca47b780a744c2ebbf31d925.png)
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11-12高一上·河北石家庄·期中
名校
3 . 已知函数
是偶函数.
(I)证明:对任意实数
,函数
的图象与直线
最多只有一个交点;
(II)若方程
有且只有一个解,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec9ec2a51fe170a3470ebf34cdecaaf.png)
(I)证明:对任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98450af5edc7c9cfd704c189b97372b3.png)
(II)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247a7db0c17053f3cb051b9008b1e267.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2016-12-01更新
|
1459次组卷
|
4卷引用:广东省广东实验中学2023届高三上学期第二次阶段考数学试题
广东省广东实验中学2023届高三上学期第二次阶段考数学试题安徽省滁州市定远中学2022-2023学年高一上学期分班模拟考试数学试题(已下线)2011年河北省正定中学高一上学期期中考试数学(已下线)重难点03函数(15种解题模型与方法)(3)
解题方法
4 . 已知函数
在
上满足
,且
,
.
(1)求
,
的值;
(2)判断
的单调性并证明;
(3)若
对任意
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da314c06ddf6cb60feaecb52ca9fadd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34bdf025f6472f99b0aa8849bbdcafa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa87c8afbe68c11826b567a26945518.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a77c4d65f01e583b2f6c5ea97c3e5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7938db3cbbf3b986755944aba0174925.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d479a86a1711709b2d100fe4daf3e7cf.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14baa24f143517147128e6b5ee5a01e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知f(x)是定义在[﹣1,1]上的奇函数,且f(1)=3,若a,b∈[﹣1,1],a+b≠0时,有
>0成立.
(1)判断f(x)在[﹣1,1]上的单调性,并证明;
(2)解不等式:f(x+
)<f(
);
(3)若当a∈[﹣1,1]时,f(x)≤m2﹣2am+3对所有的x∈[﹣1,1]恒成立,求实数m的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/4/13/1572592711237632/1572592716939264/STEM/9f9aadcada22447e935fa63112f81276.png)
(1)判断f(x)在[﹣1,1]上的单调性,并证明;
(2)解不等式:f(x+
![](https://img.xkw.com/dksih/QBM/2016/4/13/1572592711237632/1572592716939264/STEM/cec5a1bc948c433aae9a8f819291652d.png)
![](https://img.xkw.com/dksih/QBM/2016/4/13/1572592711237632/1572592716939264/STEM/a1974b498eae451bbc4d163644b575ba.png)
(3)若当a∈[﹣1,1]时,f(x)≤m2﹣2am+3对所有的x∈[﹣1,1]恒成立,求实数m的取值范围.
您最近一年使用:0次
名校
6 . 已知定义在区间
上的函数
,其中常数
.
(1)若函数
分别在区间
上单调,试求
的取值范围;
(2)当
时,方程
有四个不相等的实根
.
①证明:
;
②是否存在实数
,使得函数
在区间
单调,且
的取值范围为
,若存在,求出
的取值范围;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c9eca1510647f9b40cf7ce69c3757f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26337502f8a07b4655416be99c2c09b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fff6e7e2b9f2b68b1647f6350b98dc8.png)
(1)若函数
![](https://img.xkw.com/dksih/QBM/2017/10/10/1792483540934656/1793041726971904/STEM/6318e0e1e1f84a3da44c6ac2c1beaef2.png?resizew=36)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/28e670e88873b35b46ad6d193d8a55e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a2a51944c720568f35d443589dfc1aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9c0d827ef8598ba6b70b34b2bdcd1e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8ccd22fd0ca1a8e1468329284f91b6a.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d16df3112ff53691d26bca57f85cdc3b.png)
②是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://img.xkw.com/dksih/QBM/2017/10/10/1792483540934656/1793041726971904/STEM/6318e0e1e1f84a3da44c6ac2c1beaef2.png?resizew=36)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f030c36bb8786df88d401792062a4100.png)
![](https://img.xkw.com/dksih/QBM/2017/10/10/1792483540934656/1793041726971904/STEM/6318e0e1e1f84a3da44c6ac2c1beaef2.png?resizew=36)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad8af7bed124f00c8e19b52d028b4d90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-03更新
|
1136次组卷
|
4卷引用:江西省南昌市第二中学2017-2018学年上学期第一次月考高一数学试题
名校
7 . 已知函数
,
.
(1)
时,证明:
;
(2)
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7947a6bfc4cf6a274421af5dbc5f6315.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fbffac44e8144720e370e80b13c85a0.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e84331f34fa1786046d1fc22b508cf74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c73a98c1b3504e09bfbe0db849b0d24.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebbbf655243aacf5f622045ddb338676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2016-12-03更新
|
1613次组卷
|
3卷引用:江西省南昌市第二中学2016-2017学年高二下学期第三次月考数学(理)试题
解题方法
8 . 已知函数
定义域为
,若对于任意的
,都有
,且
时,有
.
(Ⅰ)证明函数
是奇函数;
(Ⅱ)讨论函数
在区间
上的单调性;
(Ⅲ)设,若
,对所有
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e85a135378a3780dd1a3215dd5b40d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd384d86840b7b158af41f56fe29c7d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
(Ⅰ)证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(Ⅱ)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/417ab20883d799aaf311371393fa7d7c.png)
(Ⅲ)设,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fae967a6d33973569650f87fd90040b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/66f0ca536621ec8db02707ba65917029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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12-13高一上·浙江杭州·阶段练习
名校
9 . 已知函数
是定义在
上的奇函数.
(I)求实数
的值;
(II)判断
在定义域上的单调性,并用单调性定义证明;
(III)当
时,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2c1660300e94d4bf9b60132a4259575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(I)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(II)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(III)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e9b1365d76a10c212db1c91c5f91f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2016-12-01更新
|
2069次组卷
|
3卷引用:2011-2012学年浙江省杭州市十四中高一第一学期阶段考试数学
(已下线)2011-2012学年浙江省杭州市十四中高一第一学期阶段考试数学山东省枣庄市2019-2020学年高一上学期11月月考数学试题山东省枣庄市第八中学2019-2020学年高一上学期期中数学试题