名校
解题方法
1 . 已知
,
,
,则三者大小关系为________ (按从小到大顺序)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23fdb560c7313628bd027a9c40f100ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a942b177b2126602a515359bfe4449.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff52cb77bc96e5b391d0bd06b05bde6.png)
您最近一年使用:0次
名校
2 . 第二次世界大战期间,了解德军坦克的生产能力对盟军具有非常重要的战略意义.已知德军的每辆坦克上都有一个按生产顺序从1开始的连续编号.假设德军某月生产的坦克总数为N,随机缴获该月生产的n辆(
)坦克的编号为
,
,…,
,记
,即缴获坦克中的最大编号.现考虑用概率统计的方法利用缴获的坦克编号信息估计总数N.
甲同学根据样本均值估计总体均值的思想,用
估计总体的均值,因此
,得
,故可用
作为N的估计.
乙同学对此提出异议,认为这种方法可能出现
的无意义结果.例如,当
,
时,若
,
,
,则
,此时
.
(1)当
,
时,求条件概率
;
(2)为了避免甲同学方法的缺点,乙同学提出直接用M作为N的估计值.当
,
时,求随机变量M的分布列和均值
;
(3)丙同学认为估计值的均值应稳定于实际值,但直观上可以发现
与N存在明确的大小关系,因此乙同学的方法也存在缺陷.请判断
与N的大小关系,并给出证明.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a5e1bb2637455d05313a112c5d745bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/096b1ece1dcd29c59a46a4b3e02cb548.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5031a3a951c4a1d1c5e9f80a5e26513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93d0f3799612b81e85b87241ec8eee68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dcf3400c1490071b390aaac0ad0e102.png)
甲同学根据样本均值估计总体均值的思想,用
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afb1694f46c040a6c976b2ef3eb3934b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120e4da3fe22be28b3bb28f28fbcc862.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/92da09d5877d3dfe1a856b6353b81906.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b7171e0c9c26b9f39a32d3a61d113cf.png)
乙同学对此提出异议,认为这种方法可能出现
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a1bd336033c63bc9c4f99ff2b482b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcc133d5b11b33a904875182d8c8261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50a1cf3b1a6f9a12605cbdf48e5de5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49bf4a59874878184dadeec74d1781d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53722e8f43d44f9c611398ddaab151f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afac93e0089a7ffca9a1f720e13b6878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de3874d2e8c49308151837161d7aa91c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcc133d5b11b33a904875182d8c8261.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be604061cf1591f7069472269d4c9719.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b9b7c101f267bbf233da7d3ac30e6f0.png)
(2)为了避免甲同学方法的缺点,乙同学提出直接用M作为N的估计值.当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/270e5f2895909d5b6b6c612a8696565b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348388b2590255369527f86fd6be63c3.png)
(3)丙同学认为估计值的均值应稳定于实际值,但直观上可以发现
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348388b2590255369527f86fd6be63c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/348388b2590255369527f86fd6be63c3.png)
您最近一年使用:0次
7日内更新
|
683次组卷
|
3卷引用:浙江省(杭州二中、绍兴一中、温州中学、金华一中、衢州二中)五校联考2024届高考数学模拟卷
3 . 对于给定的一个
位自然数
(其中
,
),称集合
为自然数
的子列集合,定义如下:
{
且
,使得
},比如:当
时,
.
(1)当
时,写出集合
;
(2)有限集合
的元素个数称为集合
的基数,一般用符号
来表示.
(ⅰ)已知
,试比较
大小关系;
(ⅱ)记函数
(其中
为
这
个数的一种顺序变换),并将能使
取到最小值的
记为
.当
时,求
的最小值,并写出所有满足条件的
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6be3d8ff4885ce8cf21ed3b7e4c9059.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4ab89a62749697c6a67e4fe8e6f3c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12b0e3b00fe47801afb53ec56706c21a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5123cae73867329882792f626287b970.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d688a7cacda715fc5c2fad9a2adaddee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab691edda624f588e85d493423b3e398.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fb6d4810762396e3fbe728687a0794.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7a9e06bedb3aca590121cc47e64e52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e534ff8ca5451dce6629223e002d5878.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d407ed5fd8a5fd413426fc1fc118422.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eeaa1b4ec60977b69d48d3d023f5d731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5123cae73867329882792f626287b970.png)
(2)有限集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc8279d9dd0b7750953cb9e2098b3b90.png)
(ⅰ)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b43ea4161df6e6178c26c524935af465.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b53fe2a5d83d2e3e97f3a49d1f845370.png)
(ⅱ)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2a7d5abc0e14bf1da403fba5b27644.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c558c7204d256c96b74b9c991c0e5c1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086eb439f6a1578fdba904825340772d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad1bf0868f56ad3bda73d4ca5851cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbf91726683a3963e941231877c8c6ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e731e11a03c0f5d2768e87a3442634d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c326b4a68d5148e8e5a5ebc15d3b132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad1bf0868f56ad3bda73d4ca5851cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e731e11a03c0f5d2768e87a3442634d.png)
您最近一年使用:0次
解题方法
4 . 已知长方体
中,
,点
是线段
上靠近点
的三等分点,记直线
的夹角为
,直线
的夹角为
,直线
的夹角为
,则
之间的大小关系为________ .(横线上按照从小到大的顺序进行书写)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbb0c10f0b022c68f9832cae5e357de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ac3a0f1193e61067b2e544f9ad5bac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/943b765718479c160ba61ec5c6f8c5f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f03abe733ac951ee2cb94eecf6eee078.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e29bf5652f0d4f764c3606efcdb445f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1605177249722223286eafab9a28982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9177f43add5ca8480daa636afc5862b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e76148dc582ad0ce3db3d552446e2b49.png)
您最近一年使用:0次
名校
解题方法
5 . 设
,则
,
,
的大小关系为__________
注:用“
”将三个数按从小到大的顺序连接
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47a367f6764f3e1a7f6ae0500d5de67a.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/a301324443eb93b467134a86890dd9ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff7942da6c3fc4005256fb1458557c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
您最近一年使用:0次
2023-01-02更新
|
617次组卷
|
3卷引用:专题突破卷02 指对幂比较大小
名校
6 . 设
,则
的大小关系为___________ .(从小到大顺序排)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6692869d87c64ac042ee0c269a502da8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
您最近一年使用:0次
2022-07-30更新
|
3118次组卷
|
10卷引用:重难点突破01 玩转指对幂比较大小(十大题型)
(已下线)重难点突破01 玩转指对幂比较大小(十大题型)(已下线)重难点2-1 指对幂比较大小(8题型+满分技巧+限时检测)(已下线)专题03 一网打尽指对幂等函数值比较大小问题 (9大核心考点)(讲义)(已下线)专题9 式子大小判断问题(过关集训)福建省龙岩市上杭县第一中学2022届高三下学期5月模拟考数学试题(已下线)专题01 比较大小题狠字也少,构造放缩泰勒真的好(已下线)第40练 导数在研究函数中的应用(已下线)专题08 导数及其应用(模拟练)(已下线)专题01 函数值的大小比较-2(已下线)第三章 利用导数比较大小 专题三 利用帕德逼近、泰勒展开式比大小 微点2 利用泰勒展开式比大小
7 . 已知
,
,
,则
,
,
的大小顺序为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5188af46d7797c4a9a753dfbb912cfc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff81e1cc5f2c827a14419242e5f63f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7624b3666a9369b1df855306620e2cc.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)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
7日内更新
|
201次组卷
|
2卷引用:山东省日照市2024届高三下学期校际联考(三模)数学试题
8 . 故
,
,
,则a,b,c的大小顺序是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a41cc9049109e6181040d7d228ad2e83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/261f05365542ed98a53024d9f55de89d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97fdd39ad10070a9795be393aabdd9b8.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 已知
,
,
,那么M,N,P之间的大小顺序为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd52064c013cac1ad1fbd73b225872e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bc6892b49454d8a06167c67a77196fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9473ae5c4d2e1ac2bb40811801884972.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2024高三·河南·专题练习
10 . 设函数
,
,
在
上的零点分别为
,则
的大小顺序为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a46ccef5ddef05f2aa8ab837d05b3dd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63ff31c212773a7dc2a96f12fe4a8c5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ad3b6f720a78b5a1720778b2fd650d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d562dc22dfb3b81d0c3f88b54d063c2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76f0649064a085fb74c997fb507a9b6d.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2024-04-16更新
|
538次组卷
|
3卷引用:黄金卷01(文科)