解题方法
1 . 如图,有一张较大的矩形纸片
分别为AB,CD的中点,点
在
上,
.将矩形按图示方式折叠,使直线AB(被折起的部分)经过P点,记AB上与
点重合的点为
,折痕为
.过点
再折一条与BC平行的折痕
,并与折痕
交于点
,按上述方法多次折叠,
点的轨迹形成曲线
.曲线
在
点处的切线与AB交于点
,则
的面积的最小值为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcab46b9032d25a660af389a6a37210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/192f4f9446c954a291f779d963f90257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8d71ba52c97faad3a085b9989969145.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d36626c9e45a25e8dc5bf4be4dbbfb3.png)
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2024-05-20更新
|
705次组卷
|
3卷引用:江西省南昌市2024届高三第二次模拟测试数学试题
解题方法
2 . 已知正项数列
的前n项和
满足
(n为正整数),则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
_________ ;记
,若函数
的值域为
,则实数k的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b395a99c51ee3d33279d0650c245593e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c2864e2ec3416cc4c081ac1f71a0af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2a0686fb74ed14df00e0efefc354d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cfc381be76b874a795d81bb6c085116.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
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解题方法
3 . 若正实数
满足不等式
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2964b9f8eb74f2c1c4c48b4502cfaf5.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07dfc4eb56f069f67149c083b121c935.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2964b9f8eb74f2c1c4c48b4502cfaf5.png)
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名校
解题方法
4 . 已知点A,B,C是离心率为
的双曲线
上的三点,直线
的斜率分别是
,点D,E,F分别是线段
的中点,
为坐标原点,直线
的斜率分别是
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbcf744dceb18820e4a1ca354cb3cfe1.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d2b05d20e954445dd0f4b373830f97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942e6dafcfcbf0682856b9f25178694d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dca1726d463bd741c904abd9b6589056.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942e6dafcfcbf0682856b9f25178694d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e8ebdbd58b757fc18d53f7a57348ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86305b0d0df92dc1706b8f0e335498c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13966d20d2ca1024038e532cba54865e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bbcf744dceb18820e4a1ca354cb3cfe1.png)
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解题方法
5 . 定义:有限集合
,
则称
为集合
的“元素和”,记为
.若集合
,集合
的所有非空子集分别为
,
,…,
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e46f01c4a5c57ded953c5796f318dd.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e6e701c68e1038582c4ef1eceb87115.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6559598727fb120a5cdbf4f15510615d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03b5214a796412b3df9f716da0bf339b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/685fdef2e4872004134d6bb7d1cf8f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf99487d7860d017c0747ff966edfd77.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e46f01c4a5c57ded953c5796f318dd.png)
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2024-03-07更新
|
267次组卷
|
3卷引用:江西省新八校2023-2024学年高三上学期第一次联考(期末)数学试题
6 . 记
表示不超过x的最大整数,例如
,
.已知函数
,若函数
恰有2个零点,则实数a的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0582aa1aa68e686d214659b220d2f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a090ab1d3413d618f80e175c28d0b04f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e47b26eb3415753b4fcb356efc31826c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fc4c82dfc61859116cecdbcf7a48531.png)
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名校
7 . 如图,已知正方体
棱长为2,其内壁是十分光滑的镜面.一束光线从
点射出,在正方体内壁经平面
反射,又经平面
反射后,到达
的中点
,则该光线所经过的路径长为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e168672b47d7e64dc1b404f8882c7dcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ebb05874eb3353d754af24c9974273e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66fb71b75b63594ebeeeebd1963eed5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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8 . 在三棱锥
中,
,
,
,当三棱锥
的体积最大时,直线
与平面
的夹角为______ ,三棱锥的外接球的表面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0402dd5ae3db10281f9f1e11738bcb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2679bb0177f68d4c6e80a9a66bca9348.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1371fe98a65d8ebd840c8d98346b6d15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63397cda22cb1fad59cf966dfb588643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
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解题方法
9 . 已知函数
的定义域为
,对于任意
,当
时,
(其中
为自然对数的底数),若
,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03e1840471544407d1439f72e67dae23.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42fd7af568e3d9f444beb0ff41426477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2210f152080d9a68a97c805f5c1cde96.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83fa297062ff72cf46f63b29c03cf982.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/041a7c8fc017f596542c5e6ec7d1c40b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b44eb004ced8baf5b52205f630f10923.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解题方法
10 . 《测圆海镜》是金元时期李治所著中国古代数学著作,是中国古代论述容圆的一部专著,如第2卷第8题的“弦外容圆”问题是一个勾股形(直角三角形)外与弦相切的旁切圆问题,已知在
中
,
,
,点
在第一象限,直线
的方程为
,圆
与
延长线、
延长线及线段
都相切,则圆
的标准方程为_______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd967903ed5a6f640a5b801ec8be0070.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/080db3af81b29ed10144a1c2e2a4fb8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40630a669f4eedf626bc24851df10c85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/852b303689c31189cd47bb4a3220f9fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/091c83390d0755e1b72755cf37490351.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dea2ae9d515f9ab351ad72306b776ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
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2024-02-14更新
|
126次组卷
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2卷引用:江西省上进联盟2023-2024学年高二上学期1月期末联考数学试题