1 . 抛物线
:
的焦点为
,抛物线过点
.
(Ⅰ)求抛物线
的标准方程与其准线
的方程;
(Ⅱ)过
点作直线与抛物线
交于
,
两点,过
,
分别作抛物线的切线,证明两条切线的交点在抛物线
的准线
上.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec668d00d2b67d373aa4f748ba37773f.png)
(Ⅰ)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(Ⅱ)过
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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名校
2 . 在平面直角坐标系xOy中,圆O的方程为
,以坐标原点为极点,x轴的正半轴为极轴建立极坐标系,曲线C的极坐标方程是
.
求圆O的参数方程和曲线C的直角坐标方程;
已知M,N是曲线C与x轴的两个交点,点P为圆O上的任意一点,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/259e9a874ba8a4fbc027e01699a81d8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3118358607a1db468929c2b3f3c1e9d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4141b26d2c32655003494a91ad6331b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65863c1abad833b79c303bfca24f535c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea57be0e967eaf8e4c29666b82a6ab48.png)
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2018-12-17更新
|
1026次组卷
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9卷引用:【全国百强校】四川省绵阳中学2018届高三高考三模数学试题(理科)试题
【全国百强校】四川省绵阳中学2018届高三高考三模数学试题(理科)试题四川省内江市威远中学2020-2021学年高三3月月考数学(文)试题四川省内江市威远中学2020-2021学年高三3月月考数学(理)试题四川省绵阳南山中学2021-2022学年高三上学期12月月考数学(文)试题四川省遂宁市射洪中学2021-2022学年高三上学期第四次月考数学文科试题云南省昆明市2018届高三教学质量检查第二次统考理数试题云南省昆明市2018届高三教学质量检查(二统)文科数学试题【全国百强校】宁夏银川市唐徕回民中学2018届高三下学期第四次模拟考数学(理)试题【全国百强校】河北省武邑中学2019届高三下学期第一次质检数学(理)试题
3 . 已知
,在直角坐标系
中,直线
的参数方程为
(
为参数);在以坐标原点
为极点,
轴的正半轴为极轴的极坐标系中,直线
的极坐标方程是![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de3ff5870d1489ddde9b3d3af9adc32.png)
.
(1)求证:
;
(2)设点
的极坐标为
,
为直线
,
的交点,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e6b60aec15207d0c144c94f2ec428c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d315308a9869c237b0083f42ae054e10.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8de3ff5870d1489ddde9b3d3af9adc32.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e49cb7608eb5d248310f033c3eb835c8.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce08b357f11ef44c3e8207ac574422a.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a09f7d213a1b946d94e287fc6d2da451.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b140d36ebefcd2b376d4c315fe5f84e4.png)
您最近一年使用:0次
2017-05-24更新
|
685次组卷
|
2卷引用:四川省大教育联盟2017届高中毕业班第三次诊断性考试数学(理)试题
名校
4 . 极坐标系与直角坐标系
有相同的长度单位,以原点
为极点,以x轴正半轴为极轴,已知曲线
的极坐标方程为
,曲线
的参数方程为
(
为参数,
),射线
与曲线
分别交于(不包括极点
)点
.
(1)求证:
;
(2)当
,B,C两点在曲线
上,求
与
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/925b34a1e7a48f450d883f9a0197e5c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3ccfa7ce00d752f762f3692cc067e2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/005c2f9ee561cf030fb696ff80884739.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3afb8f7e58956c81d15f2f86d1f57b58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/703bf986844333a1524b971ad1696b77.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cddce60584c6209740248d3e2005fd52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
您最近一年使用:0次
2016-12-03更新
|
1210次组卷
|
13卷引用:2020届四川省绵阳南山中学高三3月网络考试数学(理)试题
2020届四川省绵阳南山中学高三3月网络考试数学(理)试题2016届宁夏银川一中高三上学期第一次月考理科数学试卷2016届宁夏银川一中高三上学期第一次月考文科数学试卷2016届湖南师范大学附中高三上学期月考三文科数学试卷2016届陕西师大附中高三下第十次模拟文科数学试卷2017届河北省衡水中学高三上学期六调数学(理)试卷江西省重点中学盟校2017届高三第二次联考数学(理)试题【全国百强校】江西省临川第一中学2019届高三10月月考数学(理)试题【市级联考】湖北省黄冈市八模2019届高三理科数学模拟测试题【市级联考】湖北省黄冈市2019届高三八模模拟测试卷(二)文科数学试题(已下线)专题11-1 参数方程与极坐标大题15种归类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)【全国校级联考】河北省卓越联盟2017-2018学年高二下学期第三次月考数学(文)试题人教A版 全能练习 选修4-4 综合测评 模块结业测评(三)