1 . 已知平面上一个圆可以将平面分成两个部分,两个圆最多可以将平面分成4个部分,设平面上
个圆最多可以将平面分成
个部分.
求
,
的值;
猜想
的表达式并证明;
证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce262fc9f2af41d07cde8b57f262fae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/328cef176d863d081bbccf76ccbb03ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbdc012708321ce42474cfeeafeb1366.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce262fc9f2af41d07cde8b57f262fae9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4bb89a362c1faf4d0c306eabbb59710.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74faca3ba2a918f0c4234b02949d2b22.png)
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2 . 已知
均为非负实数,且
.
证明:(1)当
时,
;
(2)对于任意的
,
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e84308669f0ccd8c72b75daaa0039cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e8a9ed88a8f3bacc7ea98e3e0b0d255.png)
证明:(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a190e8203c7b3ec605165433f5e2629.png)
(2)对于任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea3e98b8b570ce5afda4c932ae3d081d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a24b5d2a24414425c35879723f66ad5.png)
您最近一年使用:0次
2019-03-29更新
|
469次组卷
|
2卷引用:【市级联考】江苏省七市2019届(南通、泰州、扬州、徐州、淮安、宿迁、连云港)高三第二次调研考试数学试题
3 . 已知数列
满足
,
,
.
(1)用数学归纳法证明:
;
(2)令
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14835bf3f00139ccec0694d0924db795.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f192d37d00efd895122c1611ddf84e17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36b98ef143f8159f3a7dafa1fd2f2370.png)
(1)用数学归纳法证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a8975e416da88f58c9332a3281f6c96.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44dd3e3221b8bd375e6a2d1916eb6e65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c46a8d48be9e60bb5c3f331e4f2df18.png)
您最近一年使用:0次
2019-01-30更新
|
759次组卷
|
2卷引用:【市级联考】江苏省徐州市(苏北三市(徐州、淮安、连云港))2019届高三年级第一次质量检测数学试题
4 . 用数学归纳法证明:“两两相交且不共点的条直线把平面分为
部分,则
.”证明第二步归纳递推时,用到
+ .
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2018-07-10更新
|
195次组卷
|
3卷引用:人教版高二数学选修2-2、2-3综合测试题二
解题方法
5 . 将正整数排成如图的三角形数阵,记第
行的
个数之和为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/92541fd2-b8bb-42dc-800a-3e970369a24b.png?resizew=138)
(1)设
,计算
,
,
的值,并猜想
的表达式;
(2)用数学归纳法证明(1)的猜想.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/29/92541fd2-b8bb-42dc-800a-3e970369a24b.png?resizew=138)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77b9fcf130e912aa06320d82793b65e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f30f56664446f32dbbc2c5f12a99374.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
(2)用数学归纳法证明(1)的猜想.
您最近一年使用:0次
6 . 把圆分成
个扇形,设用4种颜色给这些扇形染色,每个扇形恰染一种颜色,并且要求相邻扇形的颜色互不相同,设共有
种方法.
(1)写出
,
的值;
(2)猜想![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4fc8faefb26b233d4aa9dbef043aae.png)
,并用数学归纳法证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae0b861522b18be1753acc4474cbc9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4fc8faefb26b233d4aa9dbef043aae.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cf59c5075f9e6fdf3782b6c0e528237.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54bd888bfb31bdd6cddc28e687304406.png)
(2)猜想
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d4fc8faefb26b233d4aa9dbef043aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80be0c3c50d2bd6230b53fbd056122df.png)
![](https://img.xkw.com/dksih/QBM/2018/6/29/1977629448601600/1979206597566464/STEM/4a14355ef1614340979db4d1634133e9.png?resizew=94)
您最近一年使用:0次
7 . 设
1
,其中p
R,n
,
(r=0,1,2,…,n)与x无关.
(1)若
=10,求p的值;
(2)试用关于n的代数式表示:
;
(3)设
,
,试比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea75d1e8ee128916739a842b4ed3089e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd2f952a5e5adfbce4ece69f95aff00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a02d44492b51b0e08208fdc0d1707025.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bec1b383f61d7a71f10ce999c9321381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a86c6b2d9059e94c4f210c9575e3c17f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e222984e844f4f7ed8267a295ad92dd1.png)
(2)试用关于n的代数式表示:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab8580ec2281bb1095f53185763b2658.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d90290b6e83a7b1e54984379274d8ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a056ca846cbfb940285b848f10763ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf0302296d507cffd895cfa88627f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e47408306d70fad7d11cba565f142c4.png)
您最近一年使用:0次
8 . 设![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a92340166d1bdc446ff7a0810eee8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d160ac29b55ca063020bd1aeb4f774cb.png)
,其中
,
,
与
无关.
(1)若
,求
的值;
(2)试用关于
的代数式表示:
;
(3)设
,
,试比较
与
的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a9a92340166d1bdc446ff7a0810eee8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d160ac29b55ca063020bd1aeb4f774cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a22b918a2594ab947e5b3f0cc6a6163.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1915b9fb68d3584dc940638fbc041083.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fc2d3e041a371f66d19609774546497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d9c627a6178b91ac42a6c92b8edd8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)试用关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1679d1e7896e35da84f8afe912a7826b.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4579a7e7047e1808637960833da58e48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a056ca846cbfb940285b848f10763ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf0302296d507cffd895cfa88627f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e47408306d70fad7d11cba565f142c4.png)
您最近一年使用:0次
9 . 已知数列
满足:
.
证明:当
时,
(1)
;
(2)
;
(3)
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e976c0663fa749ca749f99842d21ca03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70d66baa4489d392e4b3f4e683593439.png)
证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cea4ac187cbb465180e89f38250b3970.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89324778d9ef3bfb8fda853a8769441.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde2283350b42afe57cc3ebd1f5f183a.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a53e38560abb73ee01a80ba765560199.png)
您最近一年使用:0次
10 . 已知数列
中
.
(Ⅰ)证明:
;
(Ⅱ)设数列
的前
项和为
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/205ed7e75733718f13843542a433eda1.png)
(Ⅰ)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071588dde42dd07c060f53a0ee17f1a7.png)
(Ⅱ)设数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63d471926f7b27322d90c82b9ce21d3d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526462cf9eb29abe55434a819dd44cc6.png)
您最近一年使用:0次
2018-05-14更新
|
668次组卷
|
2卷引用:【全国市级联考】浙江省绍兴市2018届高三第二次(5月)教学质量调测数学试题