11-12高三上·黑龙江大庆·期末
1 . 已知以向量
为方向向量的直线l过点
,抛物线
的顶点关于直线l的对称点在该抛物的准线上.
(Ⅰ)求抛物线C的方程;
(Ⅱ)设A、B是抛物线C上两个动点,过A作平行于x轴的直线m交直线OB于点N,若
(O为原点,A、B异于原点),试求点N的轨迹方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a960240bf473c083a48e3f665d31a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ba6562f59bb717a348d619e7b0c1654.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
(Ⅰ)求抛物线C的方程;
(Ⅱ)设A、B是抛物线C上两个动点,过A作平行于x轴的直线m交直线OB于点N,若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6672b7aa93c06da5ed1939824a03517a.png)
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11-12高三上·黑龙江大庆·期末
2 . 如图,三棱柱
的底面是边长为2的正三角形,且
平面
,
是侧棱
的中点,直线
与侧面
所成的角为45°.
![](https://img.xkw.com/dksih/QBM/2011/3/25/1577382747717632/1577382748987392/STEM/6206a479ecbe4c17abfd65cd12fe3db9.png?resizew=246)
(Ⅰ)求二面角
的余弦值;
(Ⅱ)求点
到平面
的距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42d3a82b8e587ee890467835bc4e854c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5845ccc0d735dc14c92a8926d9b1def6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d88bf46ad08f9677c37eed1d0369329.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03902478df1a55bc99703210bccab910.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58cc6184b191e6da43911e701121517e.png)
![](https://img.xkw.com/dksih/QBM/2011/3/25/1577382747717632/1577382748987392/STEM/6206a479ecbe4c17abfd65cd12fe3db9.png?resizew=246)
(Ⅰ)求二面角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5f1854ba6cc92481d7a616bd2788a47e.png)
(Ⅱ)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7abd284f76d9f5769bc189508ce2572b.png)
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3 . 如图,正方形
与梯形
所在的平面互相垂直,
,
,
,
,
为
的中点.
(1)求证:
平面
;
(2)求证:平面
平面
;
(3)求平面
与平面
所成锐二面角的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cdb2dd10731b99c0f4f89ee957f8a239.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b37591109b0a0ec5ffe2133f83310eca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27db558e8db4c957654c8e5cecd2d2dc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e673ef2d48215ca84a48377f17d6df00.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eedae8d316c76e3d0b451256de03fb9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/9/30/27396d36-39a5-417e-a0a1-bbd7128408ec.png?resizew=192)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2061b9ab3862d9c36d32c4ffef91145a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
(2)求证:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3547a914468b082d8d8741b974a03190.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
(3)求平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9a814b70236a108be5d6e7ff271fe92.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ecc1cb55a57dde481f8dd07ab150676.png)
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2016-12-03更新
|
2290次组卷
|
5卷引用:黑龙江省哈尔滨市第一中学校2018-2019学年高二上学期期末考试数学试题(理科)
4 . 如图,椭圆
的离心率为
,
轴被曲线
截得的线段长等于
的长半轴长.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/4332f70d-10f2-4939-81e0-00cd862ae30d.png?resizew=220)
(1)求
,
的方程;
(2)设
与
轴的交点为 M,过坐标原点O的直线
与
相交于点 A,B,直线MA,MB分别与
相交与D,E.
①证明:
;
②记△MAB,△MDE的面积分别是
.问:是否存在直线
,使得
=
?请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd486b8796b3454eab219c28ed131683.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860884c0017c8bceb5b0edff796c144f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6e671afd184e7bb84266ab42357ebbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/3/10/4332f70d-10f2-4939-81e0-00cd862ae30d.png?resizew=220)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
①证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e21402367709de8a3cb28d3444d33a55.png)
②记△MAB,△MDE的面积分别是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/358039a7c6e0004bc430d4ee2d89fe1e.png)
您最近一年使用:0次
2016-12-03更新
|
5552次组卷
|
6卷引用:【全国百强校】黑龙江省鹤岗市第一中学2018-2019学年高二上学期期末考试数学(理)试题
【全国百强校】黑龙江省鹤岗市第一中学2018-2019学年高二上学期期末考试数学(理)试题江西省景德镇一中2020-2021学年高二上学期期末考试数学(理)试题2011年普通高等学校招生全国统一考试理科数学(湖南卷)【全国百强校】重庆市第一中学2018-2019学年高二上学期期中考试数学(理)试题(已下线)大题专练训练27:圆锥曲线(求直线方程)-2021届高三数学二轮复习(已下线)专题24 圆锥曲线中的存在性、探索性问题 微点2 圆锥曲线中的探索性问题
10-11高一下·黑龙江鹤岗·期末
5 . 如图,在三棱锥
中,
,
为
中点.
(1)求证:
平面![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)在线段
上是否存在一点
,使二面角
的平面角的余弦值为
?若存在,确定
点位置;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41e5db1d2fd912f77923e4c120a7dc19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91fd684119cd366c5c024da2be7e7344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dc5c9827dfd0be5a9c85962d6ccbfb1.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d30637da200a07672ae231b4c5c09cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef5239ddbb0972700ce01daf9ee7cf.png)
(2)在线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd9bd54c25b35857e6b602291f9b6062.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83303d3784492506fc44f2b4d6b07bc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://img.xkw.com/dksih/QBM/2011/7/20/1570269026082816/1570269031669760/STEM/87f1cdc47fa342958ad2ad23f3db9b1b.png?resizew=238)
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11-12高三上·黑龙江牡丹江·期末
6 . 椭圆
的左、右焦点分别为
,过
的直线
与椭圆交于
两点.
(Ⅰ)若点
在圆
(
为椭圆的半焦距)上,且
,求椭圆的离心率;
(Ⅱ)若函数
且
的图象,无论
为何值时恒过定点
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c38928a92bc4b44ed3c9b89769f5372.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
(Ⅰ)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26edd7d076460e7aa7e8f319cb2be370.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/953b8470d0ddf3ca3c4f33b1aaa1b4dd.png)
(Ⅱ)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12f1ca3648ec85df89f9120edf7a6958.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1ebc40126e8670e98e25c50f042511.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07a0142d29025c09adf27c21057be0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84b84db0fc1c68a6eb372c997922aaac.png)
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11-12高三上·黑龙江牡丹江·期末
7 . 已知椭圆
的左、右顶点的坐标分别为
,离心率
.
(1)求椭圆
的方程;
(2)设椭圆的两焦点分别为
,若直线
与椭圆交于
、
两点,证明直线
与直线
的交点在直线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e9c11cc36320090d0aaf0c621a63b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5c7316976a221c051a2c14df80b1347.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设椭圆的两焦点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10b60747933214d7171657b680196577.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d50703c46b6153945d718b198f03b4b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7785afeeaf274892253d04b4f693b367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
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11-12高二上·黑龙江牡丹江·期末
8 . 若双曲线
的焦距为8,求
的离心率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/540f0911e1e0e2e94503ce24b8e2044b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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11-12高二上·黑龙江牡丹江·期末
解题方法
9 . 已知椭圆
的离心率是
,长轴长是为
,
(1)求椭圆的方程;
(2)设直线
与
交于
两点,已知点
的坐标为
且
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
(1)求椭圆的方程;
(2)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd40f44c911918ee3638eb1a24bb1bd9.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22840186db0afc0e2b2e8915ce79b998.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f30acc34f4ee1077532ae6808af2ab2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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11-12高二上·黑龙江牡丹江·期末
解题方法
10 . 已知双曲线的方程为
,求此双曲线的焦点坐标,渐近线方程,顶点坐标,离心率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a218602e8e3a52f74f760059aa7014.png)
您最近一年使用:0次