1 . 已知函数
.
(1)求曲线
在点
处的切线方程;
(2)求证:存在唯一的
,使得曲线
在点
处的切线的斜率为
;
(3)比较
与
的大小,并加以证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56f150d5ef78b3298229880b5e327685.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)求证:存在唯一的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0324fecb070287715e3e8f2322056922.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0573a6bcc480a91a43126d01bc19eeae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bd30bbe4130d3161d55011d4cf9a3d0.png)
(3)比较
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf535be1c45855aa29b1ea2d0a12d11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad2cd430ede243d4b4d4c21551b6d845.png)
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2 . 正整数数列
满足
=pn+q(p,q为常数),其中
为数列
的前n项和.
(1)若p=1,q=0,求证:
是等差数列:
(2)若
为等差数列,求p的值;
(3)证明:
的充要条件是p=
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7553d64dee43f97d1e16e71b92d96f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)若p=1,q=0,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(3)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/336c6bec5e4cb6f361df55a67618cdfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
您最近一年使用:0次
名校
3 . (1)已知
,且
证明![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135125d796a469155fc4a22dc6be3d10.png)
(2)已知
是正实数,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6a93645a9c1f5a2961519d74bf51567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e906ec0f947d031f8f426272176e7753.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/135125d796a469155fc4a22dc6be3d10.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d701d16d9f318ee8fa779f5b961d64c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d3095b59b062a298fb3c4a9c45f57d9.png)
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2020-10-23更新
|
212次组卷
|
2卷引用:江苏省扬州市公道中学2020-2021学年高二上学期期中复习数学试题
4 .
已知正数
,
,
成等差数列,且公差
,求证:
,
,
不可能是等差数列.
设实数
,整数
,
.证明:当
且
时,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bf6c84731e5e1bd335ecfc2d36c3d81.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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/812be9806122241c476ba1db516c4823.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2c70fcaa661df4fbcad820b439accda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9237dbe3a4f28962ef2870b4e7dab599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d26302e47e2926b0e807952b0efe7463.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f53190d6ead827a6338b9de847aeaf1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cec12441802f71e803efaf2c62ee588.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6dab9e79198239cda875305fd6809b5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/adc3e5be1796493161a4df7e28a6f6b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38f0e9c04402a0ffdaa25c3e3c82c7dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01710dd52c8fcfd6253697797b330453.png)
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5 . 已知常数
满足
,数列
满足
,
.
Ⅰ 求
,
,
;
Ⅱ 猜想
的通项公式,并给出证明;
Ⅲ 求证:
对
成立.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b77c5a598898e503e928a686d86791d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a39fe0a3527ae1cf0a394c0086805c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a220e7c3069eacf5718b5d816b16559.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b64c5f4e00eb5e6d08b4441628f28c20.png)
Ⅰ 求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaa33c2bd791339d32821077846605d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea68e3e47a094d30bcda211741da5d77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/248347083c0b7c315dba8b27259af05d.png)
Ⅱ 猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a39fe0a3527ae1cf0a394c0086805c.png)
Ⅲ 求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d001dcaa1ea0fcfa7649d20efb3f02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6600e42d47309d55877a0c23add5dfbf.png)
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6 . 对于定义域为D的函数y=f(x),如果存在区间[m,n]
D,同时满足:
①f(x)在[m,n]内是单调函数;
②当定义域是[m,n]时,f(x)的值域也是[m,n].则称[m,n]是该函数的“和谐区间”.
(1)证明:[0,1]是函数y=f(x)=x2的一个“和谐区间”.
(2)求证:函数
不存在“和谐区间”.
(3)已知:函数
(a∈R,a≠0)有“和谐区间”[m,n],当a变化时,求出n﹣m的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/637904facd16726fbfccb679e901e68a.png)
①f(x)在[m,n]内是单调函数;
②当定义域是[m,n]时,f(x)的值域也是[m,n].则称[m,n]是该函数的“和谐区间”.
(1)证明:[0,1]是函数y=f(x)=x2的一个“和谐区间”.
(2)求证:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d3b0573a4ee2c68c86feda380291faf.png)
(3)已知:函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a087c10b183ee28bc5fe1faa3289074.png)
您最近一年使用:0次
2016-12-04更新
|
1243次组卷
|
8卷引用:江苏省扬州市邗江区蒋王中学2019-2020学年高一上学期9月月考数学试题
10-11高一上·江苏南通·期中
7 . 已知函数
.
(1)判断并证明
的奇偶性;
(2)求证:
;
(3)已知a,b∈(-1,1),且
,
,求
,
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/319537d01e112733378c7db0c9f97c07.png)
(1)判断并证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db48ca9fe7c14d17493fa4a4333aa273.png)
(3)已知a,b∈(-1,1),且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c083bdb6c8f679ae479e3b0c405abff7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c79b135e345c4ec69529c86a7726f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff3bf2007903adc64d089a054c2284a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4889b4b46d3cd6dd677d200bdf4914fe.png)
您最近一年使用:0次
2016-12-01更新
|
1255次组卷
|
5卷引用:2011-2012学年江苏省扬州中学高二下学期期中考试文科数学试卷
(已下线)2011-2012学年江苏省扬州中学高二下学期期中考试文科数学试卷(已下线)2010年江苏省南通市高一上学期期中考试数学试卷2015-2016学年广东广州执信中学高一上学期期中数学试卷人教A版(2019) 必修第一册 必杀技 第四章 专题3指数函数、对数函数吉林省洮南市第一中学2020-2021学年高一上学期第三次月考数学(文)试题
名校
解题方法
8 . 已知
(
),
是关于
的
次多项式;
(1)若
恒成立,求
和
的值;并写出一个满足条件的
的表达式,无需证明.
(2)求证:对于任意给定的正整数
,都存在与
无关的常数
,
,
,…,
,使得![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f9b6dcc5fb7c9eec9a3b27af205c5be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fdfd4521a244a8ceebf826a07a007db.png)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/023c423be184bacdd2437bb47923b459.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
![](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/e2d51f9147b8265c0276c1f2c2659197.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ecec52a8388568b0f5cfd6fc2fb1d58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fbe892f3308c1c205ad2503ae1fe2c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fc31a53132a61cee56fd7c64251703.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)求证:对于任意给定的正整数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f35f7dcce39f3d4dc6b7faf84dc1d0a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e72adb45c60c2f63b46e65ff787302bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f9b6dcc5fb7c9eec9a3b27af205c5be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fdfd4521a244a8ceebf826a07a007db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e97a6c4a13e245d5aa13a20f718beadb.png)
您最近一年使用:0次
2016-12-03更新
|
490次组卷
|
2卷引用:【全国百强校】江苏省扬州中学2019届高三10月月考数学试题
13-14高三下·江苏扬州·阶段练习
名校
9 . 在如图所示的几何体中,面
为正方形,面
为等腰梯形,
,
,
,
.
![](https://img.xkw.com/dksih/QBM/2017/11/11/1814911745826816/1816337625866240/STEM/1752094b9fed46a49dbbb4c88c7d8660.png?resizew=182)
(I)求证:
平面
.
(II)求
与平面
所成角的正弦值.
(III)线段
上是否存在点
,使平面
平面
?证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b32c05247f6998d7a70d31d13be4148c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37591109b0a0ec5ffe2133f83310eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5181b97a7e43959b8455680157c3b644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac5867254f6e74a3e31237279cd481f6.png)
![](https://img.xkw.com/dksih/QBM/2017/11/11/1814911745826816/1816337625866240/STEM/1752094b9fed46a49dbbb4c88c7d8660.png?resizew=182)
(I)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e56fdf217165748fafe938b64fa08179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e51817ee1ebf17c73ed21171bcfc5b5.png)
(II)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca48c18021e7be4bbb3e95576e1c1b5f.png)
(III)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21037e170bdbb322558e79c40c00b454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/677d1863ff4d8ac1604b18149d4f320f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee188333e1fa99417aede565c6a4a136.png)
您最近一年使用:0次
2016-12-03更新
|
1663次组卷
|
3卷引用:2014届江苏省扬州中学高三下学期4月周练理科数学试卷
2013·江苏·一模
名校
10 . 在平面直角坐标系xOy中,如图,已知椭圆C:
+
=1的上、下顶点分别为A、B,点P在椭圆C上且异于点A、B,直线AP、PB与直线l:y=-2分别交于点M、N.
![](https://img.xkw.com/dksih/QBM/2013/4/11/1571182578401280/1571182583971840/STEM/62ce629f-5beb-44da-ae7e-70a6d6b344ed.png)
(1)设直线AP、PB的斜率分别为k1,k2,求证:k1·k2为定值;
(2)求线段MN长的最小值;
(3)当点P运动时,以MN为直径的圆是否经过某定点?请证明你的结论.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de95471bb6c16acb4fd84d8315e6a637.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a476588acbf41d798cc234a52fa21a8.png)
![](https://img.xkw.com/dksih/QBM/2013/4/11/1571182578401280/1571182583971840/STEM/62ce629f-5beb-44da-ae7e-70a6d6b344ed.png)
(1)设直线AP、PB的斜率分别为k1,k2,求证:k1·k2为定值;
(2)求线段MN长的最小值;
(3)当点P运动时,以MN为直径的圆是否经过某定点?请证明你的结论.
您最近一年使用:0次
2016-12-02更新
|
1047次组卷
|
5卷引用:2014届江苏省扬州中学高三开学检测文科数学试卷
(已下线)2014届江苏省扬州中学高三开学检测文科数学试卷(已下线)2013届江苏南师附中、天一中学等五校高三下学期期初教学质量调研数学卷(已下线)2013届江苏南师附中高三下学期期初教学质量调研数学试卷上海市金山中学2016-2017学年高二下学期3月段考数学试题安徽省安庆市九一六学校2020-2021学年高二下学期开学考试数学(理)试题