名校
解题方法
1 . 已知点
,动点
满足
.
(1)求点
的轨迹
的方程;
(2)若轨迹
的左右顶点分别为
,直线
与直线
交于点
,直线
与轨迹
交于相异的两点
,当点
不在
轴上时,分别记直线
与
的斜率为
,
,求证:
是定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669801de4f9ae277b2d7a6ad5baba12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/450c0e0334e63d27be931512d95d2b90.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若轨迹
![](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/b11449658adfc07dcf4fc0b25e7ed7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f54ea1c0c4903b3222aad364b52b5f15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a3f348a942d468f0d77c0dfbb41d87.png)
您最近一年使用:0次
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|
1022次组卷
|
2卷引用:湖南省株洲市第二中学2024届高三上学期第一次调研数学试题
2024·全国·模拟预测
名校
解题方法
2 . 如图,在平面直角坐标系中,已知点
,
是线段
上的动点,点
与点
关于直线
对称.则下列结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d838198205e4fad8a02361ea2d8e8215.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef4113c492885ba7c47fe42ac792578f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/28/6b645f0c-5a3c-4ca6-b0c5-eef4c8f1e70f.png?resizew=164)
A.当![]() ![]() ![]() |
B.![]() |
C.当点![]() ![]() ![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
2024-01-14更新
|
567次组卷
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4卷引用:湖南省株洲市第二中学2024届高三上学期第一次调研数学试题
湖南省株洲市第二中学2024届高三上学期第一次调研数学试题福建省莆田市莆田第一中学2024届高三上学期第一次调研数学试题(已下线)2024南通名师高考原创卷(六)(已下线)考点4 平面向量的范围问题 --2024届高考数学考点总动员【练】
2024·全国·模拟预测
名校
解题方法
3 . 已知
中,
,在线段
上取一点
,连接
,如图①所示.将
沿直线
折起,使得点
到达
的位置,此时
内部存在一点
,使得
平面
,如图②所示,则
的值可能为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4187969ad00f4ddf09c832937d2ee7e.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/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dddb32a7a5c157fdf8aa049b2d665b4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db54223bb3fc2fe2497213a4d1f94827.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f955e5cc9f108de6f3ca01e5eb84c52e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c92179e42115a1ee77e20f7ddd48ec9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ebcd36cffd9845d233f6d7e105c0d3b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42198b8e646ccfbbec323fd364c4d90.png)
A.![]() | B.![]() | C.![]() | D.1 |
您最近一年使用:0次
2024-01-02更新
|
749次组卷
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6卷引用:湖南省衡阳市第八中学2024届高三上学期第一次模拟测试数学试题
湖南省衡阳市第八中学2024届高三上学期第一次模拟测试数学试题(已下线)2024年全国高考名校名师联席命制数学(理)信息卷(十一)广东省广州市执信中学2024届高三第二次调研数学试题(已下线)考点14 余弦定理及应用 --2024届高考数学考点总动员【讲】(已下线)专题02 解三角形(2)-【常考压轴题】(已下线)专题19 直线与平面的位置关系-《重难点题型·高分突破》(苏教版2019必修第二册)
名校
解题方法
4 . 在长郡中学文体活动时间,举办高三年级绳子打结计时赛,现有
根绳子,共有10个绳头,每个绳头只打一次结,且每个结仅含两个绳头,所有绳头打结完毕视为结束.则这5根绳子恰好能围成一个圈的概率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/427889a781d108a1da015a217811ed28.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2023-12-31更新
|
1870次组卷
|
5卷引用:湖南省长沙市长郡中学2024届高三上学期月考数学试题(五)
湖南省长沙市长郡中学2024届高三上学期月考数学试题(五)河南省南阳市新野县第一高级中学校2024届高三上学期12月月考数学试题(已下线)考点9 数列通项公式 2024届高考数学考点总动员【练】(已下线)【练】专题10 数列与其它知识的交汇问题(已下线)计数原理与二项式定理-综合测试卷A卷
5 . 已知焦点在
轴上,对称中心为坐标原点的等轴双曲线
的实轴长为
,过双曲线
的右焦点
且斜率不为零的直线
与双曲线交于
两点,点
关于
轴的对称点为
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
A.双曲线的标准方程为![]() |
B.若直线![]() ![]() |
C.若点![]() ![]() ![]() ![]() |
D.直线![]() ![]() |
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|
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4卷引用:湖南省多校联考2023-2024学年高二上学期12月月考数学试题
2023·全国·模拟预测
6 . “心形线”体现了数学之美,某研究小组用函数图象:
,
和抛物线
的部分图象围成了一个封闭的“心形线”,过
焦点
的直线
交
(包含边界点)于
,
两点,
是
或
上的动点,下列说法正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbd7dee9c935065ab38edeca954614aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f2851cc5488a103e508c12e904becf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa019b9a83ddada0aee6a01a97e6fee4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab94459e87c666facddbe1a23ae1899d.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/1/4/0560b96f-b8f5-4785-a751-7ba321c36c8f.png?resizew=153)
A.抛物线![]() ![]() |
B.![]() |
C.![]() |
D.若![]() ![]() ![]() ![]() |
您最近一年使用:0次
名校
7 . 如图,点E是
的内心,AE的延长线和
的外接圆相交于点D,与BC相交于点G,则下列结论:①
;②若
,则
;③若点G为BC的中点,则
;④
.其中一定正确的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/e6fa31a7-d828-4c0b-943d-58d185b820ca.png?resizew=160)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ba77f66ecad8eb4a7a63f169f28a3b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b57fdd2a3642716fcf5100011eb3ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84ee8de2d272e8a3cad423ef206cd7eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f2549a1964e7221d4b82698d0afa9ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e792b0ef3d542237ed0903194597651.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/12/22/e6fa31a7-d828-4c0b-943d-58d185b820ca.png?resizew=160)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
名校
解题方法
8 . 已知斜率为
的直线与抛物线
相交所得的弦中点的横坐标为1.
(1)求抛物线
的方程;
(2)点
是曲线
上位于直线
的上方的点,过点
作曲线
的切线交于点
,若
为抛物线
的焦点,以
为直径的圆经过点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe7fd9b0c3c203a053a7ea52b71e7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c50866229ec5a3640fb250f9bd2192b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe7fd9b0c3c203a053a7ea52b71e7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09fcb20a6972108871adbf284f9e5006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05a621d7eb8844bc4d43e2a83400893.png)
您最近一年使用:0次
名校
9 . 三棱柱
中,面
是边长为2的等边三角形,
为线段
上任意点(不与
重合)则下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73a9ad711b25c36dae0c2a2cedff9954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2777840758e70e7dbbc18cef8f3d6d2b.png)
A.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
B.若侧面![]() ![]() ![]() ![]() ![]() ![]() |
C.若三棱柱![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
2023-12-20更新
|
274次组卷
|
2卷引用:湖南省长沙市雅礼中学2023-2024学年高二上学期第三次月考数学试题
名校
10 . 有一位老师叫他的学生到麦田里,摘一颗全麦田里最大的麦穗,期间只能摘一次,并且只可以向前走,不能回头.结果,他的学生两手空空走出麦田,因为他不知前面是否有更好的,所以没有摘,走到前面时,又发觉总不及之前见到的,最后什么也没摘到.假设该学生在麦田中一共会遇到
颗麦穗(假设
颗麦穗的大小均不相同),最大的那颗麦穗出现在各个位置上的概率相等,为了使他能在这些麦穗中摘到那颗最大的麦橞,现有如下策略:不摘前
颗麦穗,自第
颗开始,只要发现比他前面见过的麦穗都大的,就摘这颗麦穗,否则就摘最后一颗.设
,该学生摘到那颗最大的麦穗的概率为
.(取
)
(1)若
,
,求
;
(2)若
取无穷大,从理论的角度,求
的最大值及
取最大值时
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25f5be952cd4b2844b21df7cad1e3d7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b00f4eb7f1bd2ccefbabf0c1dfa8f69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2dd266684a38a50f7a7925d4bb5e63e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/40de5f0592b95bc8b0e9560eae5bad8d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fac3649308b528fd56545ba102dc42d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e69866076dcff686a05e9e91e61e68.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
2023-12-19更新
|
1365次组卷
|
5卷引用:湖南省衡阳市第八中学2023-2024学年高二创新班上学期第三阶段测试数学试题