解题方法
1 . 已知定义域为
的函数
是奇函数.
(1)求实数
的值;
(2)用定义证明:
在
上是减函数;
(3)若对于任意
都有
成立,求实数
的取值范围.
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572561044774912/1572561050877952/STEM/b8122ed73cfc44f8ae0f1d3a4a300d83.png)
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572561044774912/1572561050877952/STEM/1fa4f44017eb4360908b52c7daae99d3.png)
(1)求实数
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572561044774912/1572561050877952/STEM/752423f3303b4cc9b51b7c011eabc8cf.png)
(2)用定义证明:
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572561044774912/1572561050877952/STEM/30879a9a5b064069a013776568fd73af.png)
![](https://img.xkw.com/dksih/QBM/2016/3/29/1572561044774912/1572561050877952/STEM/b8122ed73cfc44f8ae0f1d3a4a300d83.png)
(3)若对于任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbfdddad972cb6a3ce9e24631a1a63a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e9d368d4f170ef4291b081cc9d39241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解题方法
2 . 已知
,且函数f(x)是定义域为R的奇函数,其中a>0,且a≠1.
(1)求k的值;
(2)判断函数f(x)的单调性,并证明你的结论;
(3)若
时,不等式
对任意x∈[1,+∞)均成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93b49c6f62a653c862de2b4748917916.png)
(1)求k的值;
(2)判断函数f(x)的单调性,并证明你的结论;
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88a98186dcca4e3093a3e910b705b087.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5051bfd00c05220c1b5a8fdfe3f0082a.png)
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11-12高一上·黑龙江鹤岗·期中
3 . 已知函数
,其中
为常数.
(1)证明:函数
在R上是减函数;
(2)当函数
是奇函数时,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8315722b05049fde7ab3d90412d6c77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(1)证明:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2016-12-01更新
|
947次组卷
|
4卷引用:四川省眉山市东坡区多悦高级中学校2020-2021学年高一上学期期中数学试题
四川省眉山市东坡区多悦高级中学校2020-2021学年高一上学期期中数学试题(已下线)2011-2012学年黑龙江省鹤岗一中高一上学期期中理科数学试卷人教版A版2017-2018学年必修一 第一章 集合与函数概念1数学试题青海省西宁市海湖中学2019-2020学年高一上学期第二次段考数学试题
解题方法
4 . 设二次函数
.
(1)当
时,求函数
在
上的最小值
的表达式;
(2)若方程
有两个非整数实根,且这两实数根在相邻两整数之间,试证明存在整数
,使得
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cacf4a593a5dd327c323627138d19178.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cc6b9950993503d1bc852e076fa037f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52a7b7c834d06f3e28a339db94690172.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3047d4ab078dafc06c047bcbf0a6ffaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6efacc740d6a5e0678c60efa0e0e035b.png)
您最近一年使用:0次
名校
5 . 如图所示,公园内有一块边长为
的等边
形状的三角地,现修成草坪,图中
把草坪分成面积相等的两部分,
在
上,
在
上.
![](https://img.xkw.com/dksih/QBM/2015/10/10/1572256703840256/1572256710049792/STEM/83b013e487864fcfa2ca1392c514964d.png)
(Ⅰ)设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832a361da851b54c6437a96488a1b987.png)
,试用
表示
的函数关系式;
(Ⅱ)如果
是灌溉水管,为节约成本希望它最短,
的位置应该在哪里?如果
是参观线路,则希望它最长,
的位置又在哪里?请给予证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/878e89b6eca35e34c863e832a2c661db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd936a2405709574af0a73543d94ad9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://img.xkw.com/dksih/QBM/2015/10/10/1572256703840256/1572256710049792/STEM/83b013e487864fcfa2ca1392c514964d.png)
(Ⅰ)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/832a361da851b54c6437a96488a1b987.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5d70e5d13db498f1c8a2e017c56e58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
(Ⅱ)如果
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
您最近一年使用:0次
2016-12-03更新
|
715次组卷
|
3卷引用:2014-2015学年四川省新津中学高一6月月考数学试卷
6 . 已知函数
,且![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600add430d0e384dabc1aca80b063642.png)
(1)求
的值;
(2)设函数
,判断
的单调性,并用定义法证明;
(3)若函数
(其中
),
的最小值为0,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bee6881a170f6ef9ed5c133b95c2f448.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/600add430d0e384dabc1aca80b063642.png)
(1)求
![](https://img.xkw.com/dksih/QBM/2015/8/19/1572216189452288/1572216195268608/STEM/04cc5d2d7e9e434cb9e69ea6a48c0bf1.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b787ac4f9788a18c2d0f4cac16cc3a32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a6849241a559dea65100b167ae117b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b4ed8e221df8d62634b506220e1d825.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87161aa7e4cfa88516cfaa5f9efbebad.png)
![](https://img.xkw.com/dksih/QBM/2015/8/19/1572216189452288/1572216195268608/STEM/ae9289d95ff549f8af0a82dae51e5cd7.png)
您最近一年使用:0次
7 . 设抛物线
的焦点为F,动点P在直线
上运动,过P作抛物线C的两条切线PA、PB,且与抛物线C分别相切于A、B两点.
(1)求△APB的重心G的轨迹方程.
(2)证明∠PFA=∠PFB.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c190e3498ab082d575c24a1a66b6da0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d047b1683b339b66921db610468af949.png)
(1)求△APB的重心G的轨迹方程.
(2)证明∠PFA=∠PFB.
您最近一年使用:0次
2016-12-01更新
|
3768次组卷
|
8卷引用:四川省雅安中学2018-2019学年高一上学期开学考试数学试题
四川省雅安中学2018-2019学年高一上学期开学考试数学试题(已下线)2012届河南省南阳市一中高三春期第九次周考理科数学试卷(已下线)第40讲 抛物线的双切线问题-2022年新高考数学二轮专题突破精练(已下线)专题3 阿基米德三角形 微点1 阿基米德三角形2005年普通高等学校招生考试数学(理)试题(江西卷)(已下线)专题37 阿基米德三角形(已下线)重难点突破14 阿基米德三角形 (七大题型)(已下线)第五篇 向量与几何 专题4 极点与极线 微点1 圆锥曲线之极点与极线(一)
名校
8 . 定义在
上的函数
,对任意
,
,都有
,且
,当
时,
.
(1)证明:
在
上单调递减;
(2)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/193b90b218980dd666b2ca5a8ef1687a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059e6342254858afcbe4cd78ebe8bf10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b4ed4485745f1d259a3953c242b9cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca542e78b7d77d008c9c4752afa91a55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2180e18416d40abb243bd23984e7aba.png)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
(2)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6d179d11eb3c061c4d11256b8166272.png)
您最近一年使用:0次
名校
解题方法
9 . (1)已知
,求证:
;
(2)若实数x,y满足
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03a16f940899579707fb7dfd2c7da9e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/306159ff84f303fb8d85dd38922d6ca6.png)
(2)若实数x,y满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c8ad3b3f438432c45a0c85fd6856a8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b88584cf1df43e28d03592c7998b1653.png)
您最近一年使用:0次
2022-10-12更新
|
430次组卷
|
2卷引用:四川省成都市树德中学2022-2023学年高一上学期10月月考数学试题
名校
解题方法
10 . 已知函数
.
(1)若
,且
.求证:
;
(2)解不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713e9efa35bd9d54d20fd8b63b186108.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859458471c86ae39e0cc42d2d960d03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cb6674318dc0382778d9c4b61d00bb9.png)
(2)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a137b333388ea3683372c1fb79d41dc1.png)
您最近一年使用:0次