名校
解题方法
1 . 小明在某不透明的盒子中放入4红4黑八个球,随机摇晃后,小明从中取出一个小球丢掉(未看被丢掉小球的颜色).现从剩下7个小球中取出两个小球,结果都是红球,则丢掉的小球也是红球的概率为( )
A.![]() | B.![]() | C.![]() | D.![]() |
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2024-05-03更新
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917次组卷
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5卷引用:山东省泰安市新泰市第一中学东校2023-2024学年高二下学期第二次质量检测数学试题
山东省泰安市新泰市第一中学东校2023-2024学年高二下学期第二次质量检测数学试题(已下线)专题02 高二下期末真题精选(压轴题 )-高二期末考点大串讲(人教A版2019)山东省淄博实验中学2023-2024学年高二下学期第二次诊断考试(6月月考)数学试题河北省示范性高中2023-2024学年高二下学期期中质量检测联合测评数学试题福建省宁德市福安市第一中学2023-2024学年高二下学期第三次月考数学试题
2 . 在通信技术中由
和
组成的序列有着重要作用,序列中数的个数称为这个
序列的长度
如
是一个长度为
的
序列
长为
的
序列中任何两个
不相邻的序列个数设为
,长度为
的
序列为:
,
,都满足数列
,
长度为
且满足数列
的
序列为:
,
,
,
.
(1)求
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634e70033857b751723d34d1ca86f375.png)
(2)求数列
中
,
,
的递推关系![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(3)记
是数列
的前
项和,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffaa8e2bd299bb83168cfac17137d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aec18fcd4df134d5037dd56f3d82841.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f43677db00ba65a7f96fc49627d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffaa8e2bd299bb83168cfac17137d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c90282d4a37c9a20620d4bbb0c263cae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffaa8e2bd299bb83168cfac17137d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfccafa83afe5ee21eab6ef2b2c8852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffaa8e2bd299bb83168cfac17137d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2581813c187d2e230d97567d649d72b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ffaa8e2bd299bb83168cfac17137d29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e222c99263ff290929466f52bdb07404.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a3257d015e9b178850734cfc3a5b1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f43677db00ba65a7f96fc49627d70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d786bde127368fd1b2ed7a7d233db866.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cbeed5324c432101be517dd6f5c735b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/634e70033857b751723d34d1ca86f375.png)
(2)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d41ae64e37ebcddccabd64e12b0afc2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7085d141e33ba0188e58fa2177d89ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bfccafa83afe5ee21eab6ef2b2c8852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32ca6fa9955690cec01db601e3abce0c.png)
(3)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b708c8dcb2d66eb2ce0b3718a9cd924a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe229b24e2d56ff6b491725ceae4ff2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b1c13936c1d87bc8fc19a215f8a138f.png)
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3 . 将函数
的图象绕原点逆时针旋转
后得到的曲线依然可以看作一个函数的图象、以下函数中符合上述条件的有( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15615de1a6df206dbd081251f676578e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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解题方法
4 . 一平面截正四棱锥
,与棱
的交点依次为
,已知
,则
的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0585b6c0f156eecf9662b9846d4eb693.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eb6099cb3d24e0096b6c2f7aa432abe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d659d5601d47fc8e580788f8bfc2cab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34a2bbe40d86d93964e20a85a84a8bc8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 已知
为曲线
上任意一点,直线
与圆
相切,且分别与
交于
两点,
为坐标原点.
(1)若
为定值,求
的值,并说明理由;
(2)若
,求
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d73e5d0249b0d0aaea8c8b83fa184d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ec8858389f4c3156a946ba8bf0d8a7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f240cccaf24af8a796abb95cb42be52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21c97bd891b4a3050956bbaf52b4cfd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a4aacf265e413ee2c2df0f4e2af2058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
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2024-02-20更新
|
657次组卷
|
2卷引用:山东省烟台市2023-2024学年高三上学期1月期末学业水平诊断数学试题
解题方法
6 . 某药品可用于治疗某种疾病,经检测知每注射tml药品,从注射时间起血药浓度y(单位:ug/ml)与药品在体内时间
(单位:小时)的关系如下:
当血药浓度不低于
时才能起到有效治疗的作用,每次注射药品不超过
.
(1)若注射
药品,求药品的有效治疗时间;
(2)若多次注射,则某一时刻体内血药浓度为每次注射后相应时刻血药浓度之和.已知病人第一次注射1ml药品,12小时之后又注射aml药品,要使随后的6小时内药品能够持续有效消疗,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/964609698358e6e31673615f150802ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e57fa6097197c6943c40394eaceae732.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b35d774836119531a3eec0ee121a8585.png)
(1)若注射
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/710dd2e08d422d57c65fd63f80509d84.png)
(2)若多次注射,则某一时刻体内血药浓度为每次注射后相应时刻血药浓度之和.已知病人第一次注射1ml药品,12小时之后又注射aml药品,要使随后的6小时内药品能够持续有效消疗,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
7 . 临沂一中校本部19、20班数学小组在探究函数的性质时,发现通过函数的单调性、奇偶性和周期性,还无法准确地描述出函数的图象,例如函数
和
,虽然它们都是增函数,但是图像上却有很大的差异. 通过观察图像和阅读数学文献,该小组了解到了函数的凹凸性的概念. 已知定义:设连续函数f(x)的定义域为
,如果对于
内任意两数
,都有
,则称
为
上的凹函数;若
,则
为凸函数. 对于函数的凹凸性,通过查阅资料,小组成员又了解到了琴生不等式(Jensen不等式):若f(x)是区间
上的凹函数,则对任意的
,有不等式
恒成立(当且仅当
时等号成立). 小组成员通过询问数学竞赛的同学对他们研究的建议,得到了如下评注:在运用琴生不等式求多元最值问题,关键是构造函数.小组成员选择了反比例型函数
和对数函数
,研究函数的凹凸性.
(1)设
,求W=
的最小值.
(2)设
为大于或等于1的实数,证明
(提示:可设
)
(3)若a>1,且当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12be206d66e65eb92ef08bad8cd8f71d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/344ccbf79da6ad7e3709d6fa72efb756.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a7cd59277a15b4d9063be84a40d5541.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4a4ab6155e1fd2c8f9508efa3adcda0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ca6d68f1de3e70696f1d5d60affe6ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f87a3affc8cd30c21af57157d156c48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c6933733e82337e6d4a95fc2946ff26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2697ef67790838c84cc238a0334c5d47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83aa9d22736190332e01260e5a7803de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29b7a76267b71e6fc828cf2a2e81173d.png)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21dd60e2cd1a1aae21a9c07820214290.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0823f59998a025e80b46881993e89d1.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01262e3dd65728a29f3bbfa584dccede.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7425d1d31f6188375d44137c2b219b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10cda4049695561dab3e0803c3a287fe.png)
(3)若a>1,且当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89c2336e46cbbe2b978d7d8fcd340be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdc069f6b9d1623e1c06879cef933e42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2024-02-20更新
|
348次组卷
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2卷引用:山东省临沂第一中学2023-2024学年高一上学期期末模拟数学试题
8 . 如果数列
满足以下两个条件,称该数列为“闭数列”.
(1)已知数列
各项均为正数,且单调递增;
(2)数列
的前
项组成的集合记为
,对于任意
,如果
、
,则
.
已知数列
为“闭数列”,且
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5621a6b6ddbd6412ec54095f3ee99667.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(1)已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea7fcdb5423c1c8c032a3efcf245682.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/937c09d82c480e4d67f8a48d3f66c5f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50a272adba0f1120109824440f0e252c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ed8b1c966a76d7c6ae3491693a1ba0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8756abbeac23e1db4479786c2b7d7c5.png)
已知数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/272b45cd7a704c6c8e6dab80e6b574ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2162c40838ac9cd548c7d1d0206271.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5621a6b6ddbd6412ec54095f3ee99667.png)
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9 . 已知函数
,假如存在实数
,使得
对任意的实数
恒成立,称
满足性质
,则下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3992d93b8257ca1c354b4c47d7e7afb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26376c11e57ebc6e98780d8fe466cf9e.png)
A.若![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() |
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10 . 我国著名数学家华罗庚先生说:“就数学本身而言,是壮丽多彩、千姿百态、引人入胜的……认为数学枯燥乏味的人,只是看到了数学的严谨性,而没有体会出数学的内在美.”图形美是数学美的重要方面.如图,由抛物线
分别逆时针旋转
可围成“四角花瓣”图案(阴影区域),则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebf3d19655cfb25cbe4ce3ede1bab310.png)
A.开口向下的抛物线的方程为![]() |
B.若![]() ![]() |
C.设![]() ![]() ![]() |
D.无论![]() ![]() |
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