解题方法
1 . 已知函数
.
(1)求函数
的单调区间;
(2)若关于
的不等式
在
上恒成立,且
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374d704bb56d7924b60ecc5d01cea863.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/492487325f2313736b36b6005a011aa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdfed8d6862125dc1fecfce0322a750.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0baedc4d7e690ab3f7d80d30ba0a9efe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-04-18更新
|
481次组卷
|
3卷引用:江苏省苏州外国语学校2019-2020学年高二下学期期中数学试题
(已下线)江苏省苏州外国语学校2019-2020学年高二下学期期中数学试题湖北省武汉市江夏一中、汉阳一中2019-2020学年高三下学期4月联考理科数学试题2020届湖北省武汉市汉阳一中、江夏一中高三下学期4月联考数学(理)试题
名校
2 . 如果数列
满足
,
,令
,类比课本中推导等比数列前n项和公式的方法,可求得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc784d62909f3d247bf69e2b8fe5930.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c89a1ece7b4658e82db0d01a2903b75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df65c05c7b8b7c1fd98b51ff9b6234e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f2f780584f9ec2099e6ee53a09c55b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bc784d62909f3d247bf69e2b8fe5930.png)
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2020-04-18更新
|
147次组卷
|
4卷引用:江苏省苏州市甪直中学、东山中学、金山中学2018-2019学年高二下学期期中数学(理)试题
江苏省苏州市甪直中学、东山中学、金山中学2018-2019学年高二下学期期中数学(理)试题内蒙古包头市第九中学2016-2017学年高二下学期期中考试数学(文)试题2017届江西师大附中高三10月月考数学(文)试卷(已下线)专题39 合情推理与演绎推理-冲刺2020高考跳出题海之高三数学模拟试题精中选萃
3 . 用数学归纳法证明
,则当
时左端应在
的基础上加上的项为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42a69d7809260dc535447f912b3f7225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e71c2cfba88365177c93fcf93fdd0bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ef7ca2b3e8061384501f668e59696a1.png)
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4 . 用分析法或综合法证明:
(1)求证:
;
(2)设
,求证:
.
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/add637eef4cd8802b4eb211aa4f6e572.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1caa2030ac2f57deccc5b24e940facc9.png)
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5 . 正项数列
满足
.
(1)求
;
(2)猜想数列
的通项公式,并给予证明;
(3)若
,求证:
是无理数.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/624f10fb877734018a18b280e4efa7ba.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe61d313eeca8ba47478a9de40540db8.png)
(2)猜想数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ccfa38896c6ac193fbab372f963dbb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c59e7c7a84a4bdb959e95536d0404ceb.png)
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6 . 点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75db25985d446632b3a2675347b08815.png)
在圆
的内部,以
为中点的弦所在的直线方程为
.类比上述性质可得到以下结论;点
在椭圆
的内部,以
为中点的弦所在的直线方程为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75db25985d446632b3a2675347b08815.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dfaf5beb9e54885cf7b65a89e028052.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3503d330608e7138d1b529aba4512fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95823673337994a7862c07edd804224a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa173f20f4cb5f29b433ea3a49b4bf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf9f50605db5d5f8f3a01ee8e474a112.png)
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7 . 圆内8条弦最多将圆面分成________ 个部分.
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名校
8 . 用数学归纳法证明“当
时,
能被8整除”时,第二步“假设当
时,
能被8整除,证明当
时
也能被8整除”的过程中,得到
,则
的表达式为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e145b6046bc80d0ffecc61ac67c87ca1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eadc627a4f683cf1e4db5b3ee4516aa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7007bc9d07d65698c6d573b84d0d8910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86d8155b5956fd08b5ac0515de4a4897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ba21f3d0cfc86d40e2e06446623ce0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6611feaf6cc475a68fc6b9c7d860196.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe0883792641e5e67cdcc6ea15d12afd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
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9 . 将下列三句话按“三段论”模式排列,正确的序号顺序是_________ .①铁能导电;②所有的金属都能导电;③铁是金属.
您最近一年使用:0次
2020-04-18更新
|
149次组卷
|
2卷引用:江苏省连云港市东海县2018-2019学年高二下学期期中数学(理)试题
解题方法
10 . 已知数列
的通项公式为
,它的前
项和为
.
(1)求
,
,
的值;
(2)是否存在实数
,
,
使得
对一切
都成立?若存在,求出
,
,
的值,并用数学归纳法证明,若不存在,说明利用.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/530d97ee5b112e78b902cde31074f910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a761abae1df2e22457d7b024d88082c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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