名校
解题方法
1 . 三个相似的圆锥的体积分别为
,
,
,侧面积分别为
,
,
,且
,
,则实数
的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4764374bd2fb78e59cd0b283637baeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c63055a5d6916f99d07fede49120753f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3411c87c90bd10bbadd9201630bf45f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.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/6e7f090201a6e72fbe8bd6bb55cd2cb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1134d7995638f04b3700b7e404b2da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-03-16更新
|
1074次组卷
|
4卷引用:湖南省2024届高三数学新改革适应性训练二(九省联考题型)
湖南省2024届高三数学新改革适应性训练二(九省联考题型)河南省部分重点高中2024届高三普通高等学校招生全国统一考试(期末联考)数学试卷 河南省部分重点高中(青桐鸣)2023-2024学年高三上学期期末大联考数学试题(已下线)第二章 立体几何中的计算 专题七 空间范围与最值问题 微点5 面积、体积的范围与最值问题(三)【基础版】
2 . 如图,某人沿围墙
修建一个直角梯形花坛
,设直角边
米,
米,若
米,问当![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
______ 米时,直角梯形花坛
的面积最大.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2633a6f46b0847158eebb05c743561aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c9e9e100705a796f2d3c3855d61c721.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b482495ca023cb1ca3476eea0e2b593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ec0618ae3a4fde6d6220010af229b9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/05aaff19-b357-40b3-b171-d46eea818d0d.png?resizew=160)
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3 . 在2022年世界技能大赛特别赛上,中国代表团共获得21枚金牌,名列金牌榜第一.甲、乙两人在准备参选制造与工程技术项目中进行了6次比赛,每次的得分如下:
则平均成绩较高的是__________ ,成绩比较稳定的是__________
甲 | 7 | 7 | 9 | 8 | 6 | 8 |
乙 | 6 | 8 | 8 | 9 | 10 | 7 |
您最近一年使用:0次
4 . 《中国医保药品管理改革进展与成效》蓝皮书发布,指出我国从2018年开始连续4年开展国家医保药品目录调整工作,现行版目录内西药和中成药共计2860种,其中中成药有1374种.用分层抽样的方法从中抽出143种医保药品,则从中成药目录中抽出的有______ 种.(四舍五入精确到个位)
您最近一年使用:0次
名校
解题方法
5 . 如图是一个球形围墙灯,该灯的底座可以近似看作正四棱台.球形灯与底座刚好相切,切点为正四棱台上底面中心,且球形灯内切于底座四棱台的外接球.若正四棱台的上底面边长为4,下底面边长为2,侧棱长为
,则球形灯半径
与正四棱台外接球半径
的比值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://img.xkw.com/dksih/QBM/2024/2/24/3439881745645568/3442029472153600/STEM/0066b9762966488a85b34c65df195b17.png?resizew=105)
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名校
6 . 已知
为坐标原点,
,
,
,向量
,动点
满足![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad299e2782c072d27e1c54422cc8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,写出一个
,使得有且只有一个点
同时满足
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9bece414af7ecb2d796dc8a6f549e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27e62a44b8712ce4483b8710cda0dc1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a291e0d0e2f620a15826a1aa3c04bc37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e77c9666750eb18917c43a03232d7b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bad299e2782c072d27e1c54422cc8fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e163480714acc9dae5005cac65d217d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11332380fd5a9d83ca2825e7e0d5ef66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
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2024-02-27更新
|
1273次组卷
|
2卷引用:湖南省长沙市长郡中学2024届高三一模数学试题
名校
解题方法
7 . 设集合
为满足
,
,
的空间向量
,
,
中可能出现的两两共线的向量组数组成的数集,集合
,若
,则
的取值范围为______ ,当
最小时,
的取值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44ee0b48b17112965d224bd169314f5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42725bfd7040b47a57faa633f163b856.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbd4c620c5f6235adcb1c148cad15080.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a2f4b1178f68bd147d1a2a6acd04435.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c94075193c11fe43f2396cff5a485054.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d366d8fbb7258ee051f49977441e14a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e61c7d643455ec2d0d4fdbc4ee4dd1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7eac19737d882225c903054eb4863501.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2024-02-21更新
|
534次组卷
|
2卷引用:湖南省衡阳市第八中学2024届高三下学期适应考试数学试题
8 . 已知动直线
与圆
恒有两个不同的交点
、
.设弦
的中点为
,当
变化时,总存在定点
使得
为定值,则点
的坐标______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0792930a8804925c219b70767cb41876.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb6e9693f41a982230a768aab99df9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87acbf42ed0491d2203673fa53df1d98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
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9 . 已知椭圆的周长
,其中
分别为椭圆的长半轴长与短半轴长.现有如图所示的椭圆形镜子,其外轮廓是椭圆,且该椭圆的离心率为
,长轴长为
,则这面镜子的外轮廓的周长约为__________ cm.(取
3.14,结果精确到整数)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78b52b142bd09972b0c06ccd565a4fae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f8e1339c230e99d405d1fbd60d8418b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab62ff2eb468f14769160ede4efdbe4.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/18/bccc28ed-6a3a-42c8-9ae1-bc5ef7564724.png?resizew=162)
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名校
10 . 如图,已知
是圆
的弦,
为
的中点,且
在弦
上的射影为
,则
,该定理称为阿基米德折弦定理.在上述定理中,若已知
,
,点
在直线
下方,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
,则过点
的圆的方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374fe9986ebbc986fc422e514ab93a51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e91ab9a7ef3ecc7ca88a7f2fe4abb688.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0ff808cf596294204a404d0a34f3e3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6db5080bbcf65607bfba31b7f560b323.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14cd46db17d64f86660b987402503a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62ba793283da4a8942777027c49ac757.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/638537c0a30676c73fea76c80e0f8bd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a83dead62a34a5393d67ed69c23dd036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c28e111bfa9ab7295f9689451da535ba.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/2/14/33090614-0603-4f70-8713-dd47b8686c33.png?resizew=163)
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2024-02-14更新
|
132次组卷
|
2卷引用:湖南省衡阳市衡阳县2023-2024学年高二上学期1月期末考试数学试题