1 . 已知点S是圆
上任意一点,过S作x轴的垂线,垂足为H,点T满足
,记点T的轨迹为C.
(1)求轨迹C的方程;
(2)设轨迹C与x轴的交点分别为
,
,与y轴正半轴的交点为B,M是轨迹C上任意一点,且M不在坐标轴上.若直线
与直线
交于点P,直线
与直线
交于点Q.试判断
的形状,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a13c02c5acb8df76da6356e504ded016.png)
(1)求轨迹C的方程;
(2)设轨迹C与x轴的交点分别为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a18722354086c42e62334983fc50eb6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd3b9e816b14051f785aa5aae72b8eed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e26d9636ad77369535852c6e4493446a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c2cc110e46ae4b3432814810e28bcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9399c9a2a31b0e3165aea2d6ccc4f7c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/668438e15423368cd744445e824d18a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8dcc9f79fe5f07f25447aa442ee14ad.png)
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解题方法
2 . 在直角坐标系xOy中,已知点
,直线AM,BM交于点M,且直线AM与直线BM的斜率满足:
.
(1)求点M的轨迹C的方程;
(2)设直线l交曲线C于P,Q两点,若直线AP与直线AQ的斜率之积等于-2,证明:直线l过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a9e61a7c470be817b2de725460ddd66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/298fa44e15f92fc6b5fc90eee2b019b2.png)
(1)求点M的轨迹C的方程;
(2)设直线l交曲线C于P,Q两点,若直线AP与直线AQ的斜率之积等于-2,证明:直线l过定点.
您最近一年使用:0次
2023-05-31更新
|
415次组卷
|
2卷引用:2.4.2直线与圆锥曲线的综合问题 2021-2022学年高二上学期数学北师大版(2019)选择性必修第一册
名校
解题方法
3 . 如图,已知抛物线
,
为其准线.
为
上一动点,过点
作
于
,直线
交抛物线于点
.若直线
过定点
.
(1)求
的值;
(2)过抛物线
上一动点
作抛物线
的两条切线,切点为
、
.记
的外心为
.证明:以
为直径的圆过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69a9efe4c27ce894634c9e4c737b5fd7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb50782b4a4f59f8798a90086b0d5c6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2c3d2cba96f6f03520c0b3f6e4da03e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74973a2eb4281a6943a506b779740ca7.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/7/2/c8b920e2-0711-4e77-866a-534d8d8da985.png?resizew=126)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
(2)过抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b57041b43206fc0d477f8c769078f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cffa35373ec4e4684107b42adb7a5161.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d48de5a380ae57e1094720433ab1d54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d303eb7923a91dcecc2d9bc1133d5c5d.png)
您最近一年使用:0次
名校
解题方法
4 . 已知椭圆
的离心率为
,一个顶点A在抛物线
的准线上,其中
为原点.
(1)求椭圆的方程;
(2)设
为椭圆
的右焦点,点
满足
,点
在椭圆上(
异于椭圆的顶点).
(i)直线
与以
为圆心的圆相切于点
,且
为线段
的中点,求实数
的取值范围;
(ii)若点
在第四象限,且
,求直线
的斜率.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a200ca2c4af794f4d1c6a5443830b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5989c84e320b504511f23eeb6e7357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1d93f21f39ebf95b5929b456814246.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
(1)求椭圆的方程;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/131ec6af8c3ab6e19efa348582a6d06d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(i)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(ii)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55b8765cf37a19ed0c76f5ab516ce697.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
5 . 已知抛物线C:x2=2py(p>0)的焦点为F,过点F垂直于y轴的直线与抛物线C相交于A,B两点,抛物线C在A,B两点处的切线及直线AB所围成的三角形面积为16.
(1)求抛物线C的方程;
(2)设P,M,N为抛物线上不同的三点,且PM⊥PN,求证:若P为定点,则直线MN过定点Q;并求当P点移动时,|PQ|的最小值.
(1)求抛物线C的方程;
(2)设P,M,N为抛物线上不同的三点,且PM⊥PN,求证:若P为定点,则直线MN过定点Q;并求当P点移动时,|PQ|的最小值.
您最近一年使用:0次
6 . 已知椭圆
的短轴长为2,且经过点![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e76c61a9779156672989ed0e5ff6b9a.png)
(1)求椭圆C的标准方程;
(2)设直线l与椭圆C交于A,B两点,已知
,若
为定值,则直线l是否经过定点?若经过,求出定点坐标和定值;若不经过,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e76c61a9779156672989ed0e5ff6b9a.png)
(1)求椭圆C的标准方程;
(2)设直线l与椭圆C交于A,B两点,已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5de66a86daba661b3bc05c6a073ac4b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7787dfab61ed9830b531da365e592bbd.png)
您最近一年使用:0次
2022-11-28更新
|
900次组卷
|
2卷引用:辽宁省沈阳市五校协作体2021-2022学年高三上学期期中联考数学试题
解题方法
7 . 已知椭圆
的长轴是短轴的2倍,且右焦点为
,点B在椭圆上,且点C为点B关于x轴的对称点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/bd3d3166-4ceb-4909-abb0-95b089ef1c76.png?resizew=251)
(1)求椭圆C的标准方程;
(2)若点B在第一象限且
为等边三角形,求该等边三角形的边长;
(3)设P为椭圆E上异于B,C的任意一点,直线
与x轴分别交于点M,N,判断
是否为定值?若是,求出定值;若不是,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce176fdfbb44b8459f441a8d805013f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/31/bd3d3166-4ceb-4909-abb0-95b089ef1c76.png?resizew=251)
(1)求椭圆C的标准方程;
(2)若点B在第一象限且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebcc52a06d806fde891e09a0a389fcd4.png)
(3)设P为椭圆E上异于B,C的任意一点,直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/589c3cc1f331dbb2248b0829039df7f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43995a8753fb39e768bc0e04a0e2a7b3.png)
您最近一年使用:0次
2022-10-28更新
|
1020次组卷
|
4卷引用:北京市第一五六中学2021-2022学年高二上学期期中数学试题
北京市第一五六中学2021-2022学年高二上学期期中数学试题(已下线)第04讲 圆锥曲线综合(练)北京市第一五六中学2023-2024学年高二上学期期中测试数学试题(已下线)重难点突破06 弦长问题及长度和、差、商、积问题(七大题型)-2
8 . 如图,P为椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0ac188b55d6377c0ab00a28f3b9296.png)
上的动点,过P作椭圆
的切线交圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3780231ff0af68a65a3d740a2c858b26.png)
于M,N,过M,N作
切线交于Q,则Q的轨迹方程为_______________ ;
的最大值为_________________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef0ac188b55d6377c0ab00a28f3b9296.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6992d4a7cfa2348894f7c991ed6171c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b9e53e4677ae9e2b20d5f7ce0a4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3780231ff0af68a65a3d740a2c858b26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d95f1a8e66ddfb0277c3efb15bf8b7ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9902b08a6e0aef5eac29c197a356320b.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/10/24/de5896a5-8ca6-48a2-8ae5-bc88e615bf8e.png?resizew=219)
您最近一年使用:0次
9 . 在直角坐标系
中,已知定点
,定直线
,动点M到直线l的距离比动点M到点F的距离大2.记动点M的轨迹为曲线C.
(1)求C的方程,并说明C是什么曲线?
(2)设
在C上,不过点P的动直线
与C交于A,B两点,若
,证明:直线
恒过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421a28dc3675ae20190d6090793246e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb9a6aafcd3a93f5619c904ad12c02f1.png)
(1)求C的方程,并说明C是什么曲线?
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4a4b7c684f97b9c086fcf34a03877a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f9b9bb0f509e6f3d30858efb217c1f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
您最近一年使用:0次
10 . 如图,已知双曲线
,过
向双曲线
作两条切线,切点分别为
,
,且
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/ecb20051-2b91-4c97-9bd8-5800eec92b84.png?resizew=206)
(1)证明:直线
的方程为
.
(2)设
为双曲线
的左焦点,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d750ac23802aa73c47a1528227207485.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c9708ef0dc6d6f5dcf6596d3e4f6e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12a3efb79f35db8448f3391252ab7d4e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8df332f01628130c084fd46aaca0a4b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0a9d9d11c4aff0ff6def84811c07f06.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/28/ecb20051-2b91-4c97-9bd8-5800eec92b84.png?resizew=206)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e86c6aaaf80865f372891d92a2b7a5b.png)
(2)设
![](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/5cf2fee66accf33325bc1e2f940f8916.png)
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2022-01-24更新
|
2648次组卷
|
12卷引用:河北省邯郸市十校联考2022届高三上学期期末数学试题
河北省邯郸市十校联考2022届高三上学期期末数学试题广东省湛江市2021-2022学年高二上学期期末数学试题山东省部分学校联考(烟台市第二中学等校)2021-2022学年高三上学期阶段质量检测数学试题贵州省遵义市2021-2022学年高二上学期期末考试数学(理)试题河北省石家庄市行唐县2022届高三上学期期末数学试题青海省海东市2022届高考一模数学(理)试题(已下线)专题14 圆锥曲线切线方程 微点3 圆锥曲线切线方程综合训练河北省秦皇岛市青龙满族自治县实验中学2023届高三上学期期末数学试题(已下线)高二上学期期末【常考60题考点专练】(选修一+选修二)-2022-2023学年高二数学考试满分全攻略(人教A版2019选修第一册)安徽省滁州市定远县民族中学2022-2023学年高二上学期期末数学试题(已下线)考点20 常用的二级结论的应用 2024届高考数学考点总动员(已下线)大招15直线夹角的计算方法