名校
解题方法
1 . 《九章算术》是我国古代的数学著作,在《方田》章节中给出了“弦”和“矢”的定义,“弦”指圆弧所对的弦长,“矢”等于半径长与圆心到弦的距离之差,记圆心角
,若“弦”为
,“矢”为1时,则
等于( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1865d71d450db8e7d41d29874dd7c295.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6d986e174e2285a42c3c4a66b3fd83e.png)
A.1 | B.![]() | C.![]() | D.![]() |
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2 . 任何一个复数
(其中
)都可以表示成:
的形式.法国数学家棣莫弗发现:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a529675031d20a89f6fe95353eddaa17.png)
,我们称这个结论为棣莫弗定理.根据以上信息,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b40b6895776e0807c2baecbc8f33a8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ae040082ce4b67e17e14599adffb770.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a529675031d20a89f6fe95353eddaa17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/132e9579e58d8d5225e2340e1f43adf1.png)
A.当![]() ![]() ![]() |
B.当![]() ![]() ![]() |
C.当![]() ![]() ![]() |
D.![]() |
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3 . 欧拉公式
(其中
为虚数单位,
)是由18世纪瑞士著名数学家欧拉创立的,它把自然对数的底数
、虚数单位
、三角函数联系在一起,充分体现了数学的和谐美.已知实数指数幂的运算性质同样也适用于复数指数幂,根据欧拉公式,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abfa007ea5744567c67bebd638bd5cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb63478132d4c1fef3c17e591919da83.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/579743813856e2a9183f5ec6eaaefbb2.png)
A.![]() |
B.对任意![]() ![]() ![]() |
C.对任意![]() ![]() |
D.复数![]() ![]() |
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4 . 北京天安门广场中心屹立着一座中国最大的纪念碑——人民英雄纪念碑,它专门为缅怀近现代英雄而建,它不仅仅是一个简单的建筑,更是民族精神的象征.某学生为测量该纪念碑的高度
,选取与碑基
在同一水平面内的两个测量点
.现测得
米,在点
处测得碑顶
的仰角为
,则纪念碑高
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/885db9da8b713067ff7afe37b6e7f074.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ac09dc1ca2cdd7aef28c218763d3e4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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5 . 定义空间直角坐标系中的任意点
的“
数”为:在
点的坐标中不同数字的个数,如:
,点
的坐标
,则所有这些点
的“
数”的均值与最小值之差为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bfcaf2a345411411cf94422703e9269.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f7ab8313de7414f59c3dbe74307fd85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67a6cd86d881b5674096b1f7bbbafdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
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6 . 伯努利双纽线最早于1694年被瑞士数学家雅各布·伯努利用来描述他所发现的曲线.在平面直角坐标系
中,把到定点
,
距离之积等于
的点的轨迹称为双纽线,已知点
是
的双纽线
上一点,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcb162568cb923c31c7209c8a22e4674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cca4d2dd6a806193dfd4d66991a48a82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be45dd63a0db0b7ab458f30ee6a67881.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aee82283f06cedef32eb15b87964f5d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
A.若直线![]() ![]() ![]() ![]() ![]() ![]() ![]() |
B.双纽线![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
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7 . 某省高考改革试点方案规定:2023年高考总成绩由语文、数学、外语三门统考科目和思想政治、历史、地理、物理、化学、生物六门选考科目组成,将每门选考科目的考生原始成绩从高到低划分为
,
,
,
,
,
,
,
共8个等级,参照正态分布原则,确定各等级人数所占比例分别为
,
,
,
,
,
,
,
,选考科目成绩计入考生总成绩时,将
至
等级内的考生原始成绩,依照等比例转换法则,分别转换到
,
,
,
,
,
,
,
八个分数区间,得到考生的等级成绩,如果该省某次高考模拟考试物理科目的原始成绩
,那么
等级的原始分最低大约为( )
参考数据:对任何一个正态分布
来说,通过
转化为标准正态分布
,从而查标准正态分布表得到
.可供查阅的(部分)标准正态分布表:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8a5d766aad11b1c32dabf6e3eada26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2882b9baf240d68e92d67dabb12cd332.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e194680eeb097a6b5f3b834d3b97688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8caa734b124b6278bd4a5e522484428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7b40bdfb3886053cbcc7076ec0d5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41a9e9bb3c6ddd2b1ab7d11f3113b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce364f3ee5161f09e39687f3e8b53b9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce364f3ee5161f09e39687f3e8b53b9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e41a9e9bb3c6ddd2b1ab7d11f3113b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7b40bdfb3886053cbcc7076ec0d5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8caa734b124b6278bd4a5e522484428.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c601a1f38803fe4b55f984e552a91497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/175e50796ba40cfa2e59114fa0336369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18e57ff4b2a51a53205079a0f6b5fb35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc623c4c3659db5ac097e75d1b9b2d4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5123492edf8de510cfb2a422bf374e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31c68ed009b633967fe43494ee801d59.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25be4d66eb9c5185081443686f118545.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2470c35cfe8265ec4cdcc71befbd2664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80914c4d48c673f39f8b2a518005dda9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8a5d766aad11b1c32dabf6e3eada26.png)
参考数据:对任何一个正态分布
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1290917c2c835b61384480b335cc1d13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/606a7a4ce17d92cd3bca4bc9efb9a8fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/333e52e2291c6daaf14675b5185bd4b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc4b27bf6783be534b99d59d3157c2cf.png)
1.1 | 1.2 | 1.3 | 1.4 | 1.5 | 1.6 | 1.7 | 1.8 | 1.9 | |
0.8643 | 0.8849 | 0.9032 | 0.9192 | 0.9332 | 0.9452 | 0.9554 | 0.9641 | 0.9713 | |
2.0 | 2.1 | 2.2 | 2.3 | 2.4 | 2.5 | 2.6 | 2.7 | 2.8 | |
0.9772 | 0.9821 | 0.9861 | 0.9893 | 0.9918 | 0.9938 | 0.9953 | 0.9965 | 0.9974 |
A.57 | B.64 | C.71 | D.77 |
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8 . 陶瓷茶壶是中国人很喜爱的一种茶具,不少陶瓷茶壶兼具实用性与艺术性,如图所示的陶瓷茶壶的主体可近似看作一个圆台型容器,忽略茶壶的壁厚,该圆台型容器的轴截面下底为10cm,上底为6cm,面积为
,则该茶壶的容积约为______ L(结果精确到0.1,参考数据:
;
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa574e9bd11e6f437175cccf618c87b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8639b0b48393b0a99719216160822336.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17e2352d0c9ec14cb23b702efe5ba30.png)
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解题方法
9 . 高斯是德国著名数学家,近代数学奠基者之一,享有“数学王子”称号,他和阿基米德、牛顿并列为世界三大数学家,用其名字命名的“高斯函数”为:设
,用
表示不超过
的最大整数,则
称为高斯函数,例如
,
. 已知函数
,函数
,则下列4个命题中,其中正确结论的选项是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d1dffa925101e9e19720ee7295133d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be209b4634a4169d727f9fac198acce3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bbc6c3245906550c7641ce0471ac202.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c583c96c958b9653dd9b66f7dbd7079.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da9bcf0effd771e30ab3399d2fcd9fdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0bed8d403d5e4e232c8ac65ed87af5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259118296ced0cf932f15d08c3feee77.png)
A.函数 ![]() |
B.函数 ![]() ![]() |
C.函数 ![]() ![]() |
D.方程 ![]() |
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10 . 蚊香具有悠久的历史,我国蚊香的发明与古人端午节的习俗有关,如图为某校数学社团用数学软件制作的“蚊香”.画法如下:在水平直线上收长度为1的线段
,作一个等边三角形
,然后以点
为圆心,
为半径逆时针画圆弧交线段
的延长线于点
(第一段圆弧),再以点
为圆心,
为半径逆时针画圆弧交线段
的延长线于点
,再以点
为圆心,
为半径逆时针画圆弧……以此类推,当得到的“蚊香”恰好有15段圆弧时,“蚊香”的长度为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b1bd1adfe4cc6566218f19970c2fd3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a83fdd2ba72a2dba0b6b10bb3e06b9.png)
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