名校
解题方法
1 . 已知
,
,
,求:
(1)
;
(2)
与
的夹角.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7958a6bddd1d578bbd6fbcb92e3f6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/190efc599b93baddd642ed5e2fcbcdaa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/594d993556173ded55043c25230776b2.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08e6f98f23fea7db0f74897928024ca0.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed492f7b29166ba5c1f0023b05a439c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3143307ad0ba4a631eac04e814993655.png)
您最近一年使用:0次
2024-05-29更新
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5卷引用:黑龙江省大庆市大庆中学2023-2024学年高一上学期月考数学试题
2 . 若函数
的图象上的若干个不同点处的切线互相重合,则称该切线为函数
的图象的“自公切线”,称这若干个点为函数
的图象的一组“同切点”例如,如图,直线
为函数
的图象的“自公切线”,
,
为函数
的图象的一组“同切点”.
在
处的切线为它的一条“自公切线”,求该自公切线方程;
(2)若
,求证:函数
,
有唯一零点,且该函数的图象不存在“自公切线”;
(3)设
,函数
,
的零点为
,求证:
为函数
的一组同切点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0afb80007983e5b99dcdeebf87d18ff4.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/0afb80007983e5b99dcdeebf87d18ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/556995a9d28d7755aa28d18fcdf82386.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb45f673c56a289ea78831c9237e8d20.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e2d0b8cd2c080211babbefe92a8969b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e4ee7e0a6461d1d6636e376bfa9b275.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930bc56406e69b785b37a83d48e36724.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe02c554d7141801d82ae5b12a8ad8e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4757efc8199c12b32f07b11d4ddb9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ce603aa3abcb61750d2191aaa13dddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/309b41172ad8049ec30a81c6fdc1e502.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/556995a9d28d7755aa28d18fcdf82386.png)
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3 . 已知
,
,平面内动点P满足
.
(1)求动点P的轨迹C的方程;
(2)动直线
交C于A、B两点,O为坐标原点,直线
和
的倾斜角分别为
和
,若
,求证直线
过定点,并求出该定点坐标;
(3)设(2)中定点为Q,记
与
的面积分别为
和
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48d195911a91d12edd5685f6cd963fa4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743eac5ef7cd9452d9678d797da748ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0cb18941b1e55e62e6c3f54a35ccb214.png)
(1)求动点P的轨迹C的方程;
(2)动直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46f478abeeb4da23121b652cf907972d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(3)设(2)中定点为Q,记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/592f84fbbd939b954f52dc6b8c009b53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a51aab5c5e99207337fb64603887579c.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/884d40a97fd767e95f34f3b91ab8d84c.png)
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4 . 2023年以来,哈尔滨掀起了一波旅游热潮.太阳岛某游乐园的一个迷宫如图,票价为每人10元,游客从A处进入,沿图中实线游玩且规定只能向北或向东走(且除M,N外其他每个路口选择向北和向东的概率均为
),直到从n(
,2,3,4,5)号出口走出,且从n号出口走出后,会得到一份奖金
元.
根据小概率值
的独立性检验,能否认为喜欢走迷宫与性别有关?如果有关,请解释它们之间如何相互影响;
附
.
(2)设某位游客获得奖金X元,求随机变量X的分布列和数学期望;
(3)若每天走迷宫的游客大约为100人,则迷宫项目每天收入约为多少?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c87b351f16728b0023fd63678f8103c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2d51f9147b8265c0276c1f2c2659197.png)
男性 | 女性 | 总计 | |
喜欢走迷宫 | 14 | 16 | 30 |
不喜欢走迷宫 | 16 | 4 | 20 |
总计 | 30 | 20 | 50 |
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793afd75d2b29a7bd118aae3294293c2.png)
附
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b38cfee12dbeeab57c707dca8643538a.png)
![]() | 0.10 | 0.05 | 0.025 | 0.01 | 0.005 | 0.001 |
![]() | 2.706 | 3.841 | 5.024 | 6.635 | 7.879 | 10.828 |
(2)设某位游客获得奖金X元,求随机变量X的分布列和数学期望;
(3)若每天走迷宫的游客大约为100人,则迷宫项目每天收入约为多少?
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5 . 已知正项等比数列
中,
为
的前n项和,
.
(1)求数列
的通项公式;
(2)令
,设数列
的前n项和
,求
.
![](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/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f93ba49c2b4abae2cdf8a8a6da015b5e.png)
(1)求数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
(2)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57f05c9dc38a2fe4f1be8b4ad07c9c60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1ae9a3b0b7aeb1545b65d91aa371b3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd85b79372dc6e596d465f738c3c300.png)
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6 . 如图,边长为4的两个正三角形
,
所在平面互相垂直,E,F分别为
,
的中点,点G在棱
上,
,直线
与平面
相交于点H.
(1)从下面两个结论中选一个证明:
①
;②直线
,
,
相交于一点;
注:若两个问题均作答,则按第一个计分.
(2)求点A到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca67a5b8f69507c8b80379e86f90a8ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a100d3638f0f04db2bd262c051f59b2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffe8a84ca3a13f82aff1a022edc66065.png)
(1)从下面两个结论中选一个证明:
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af3b9d2567109d0ff92a76f37afe47a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a16f5621716bfef7a056a3f2712feb4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0e57a13c665af88f326c9890072bf73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
注:若两个问题均作答,则按第一个计分.
(2)求点A到平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23b6917095bea8efd3154b72d737f013.png)
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7 . 已知
的内角
的对边分别为
.
(1)求边
;
(2)求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8f2044273d3dd1a8d53d4baeb7198eb2.png)
(1)求边
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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解题方法
8 . 已知圆C:
和直线l:
相切.
(1)求圆C半径
;
(2)若动点M在直线
上,过点M引圆C的两条切线MA、MB,切点分别为A、B.
①记四边形MACB的面积为S,求S的最小值;
②证明直线AB恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2dceb22241e283787a43ac2b006ee56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2b905d12adb1d83dd79b0b6512a32ab.png)
(1)求圆C半径
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(2)若动点M在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/446ffa300bde93a7f64368cb43bd3551.png)
①记四边形MACB的面积为S,求S的最小值;
②证明直线AB恒过定点.
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403次组卷
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3卷引用:黑龙江省大庆市实验中学实验二部2024届高三下学期得分训练数学试题(六)
名校
9 . 已知函数
,
.
(1)求函数
的单调区间;
(2)记函数
的导函数为
,若不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6baf4ccfbc0485a742f157dc3f46718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50869fa3e50c0680cd920548b30ff71a.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
(2)记函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d275fbb3ee5cd1177ca5a2ceecbbef0f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee1fea6aa6c06f5a103b0d34fbe02222.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a3345844c3c75e262e531db4badddac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2卷引用:黑龙江省哈尔滨市双城区兆麟中学2023-2024学年高二下学期5月期中考试数学试题
名校
解题方法
10 . 某校高中“数学建模”实践小组欲测量某景区位于:“观光湖”内两处景点A,C之间的距离,如图,B处为码头入口,D处为码头,BD为通往码头的栈道,且
,在B处测得
,在D处测得
.(A,B,C,D均处于同一测量的水平面内)
(2)栈道BD所在直线与A,C两处景点的连线是否垂直?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10509c5515395ac694f7b3ec951d6d1b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76cc881caea3de66fab1fabdc9d20da2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5321a6e65d2a431c5087f771bf6c2652.png)
(2)栈道BD所在直线与A,C两处景点的连线是否垂直?请说明理由.
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6卷引用:黑龙江省名校联盟2024届高三模拟测试数学试题