名校
解题方法
1 . 直线
(t为参数)的倾斜角是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/924e5fb8c3650980afb54c8d24597437.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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3卷引用:陕西省西安中学2019-2020学年高二下学期期中文科数学试题
2 . 已知直线
(
为参数),坐标原点为极点,
轴的正半轴为极轴建立极坐标系,曲线
的坐标方程为
.
(1)将曲线
的极坐标方程化为直角坐标方程;
(2)设点
的直角坐标为
,直线
与曲线
的交点为
、
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561e6a070eec183b2e54242e23180a1e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](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/9e0cb878349009a779d94b1bc40319bb.png)
(1)将曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/435938bc37cdc1227146afa9240ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/3f4dfec890cdfdda355e19463f3be813.png)
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3 . 在平面直角坐标系
中,曲线
的参数方程为
(γ为参数),曲线
的参数方程为
(s为参数).以坐标原点为极点,x轴的正半轴为极轴建立极坐标系,已知点A的极坐标为
,直线l:
(
)与
交于点B,其中
.
(1)求曲线
的极坐标方程以及曲线
的普通方程;
(2)过点A的直线m与
交于M,N两点,若
,且
,求α的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b9e53e4677ae9e2b20d5f7ce0a4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0a37ee36fdc89c2f704a9a8fec9be2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74e0aa1831e39cbedd9a4039147e0c9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcab838c482b16111b5f92951a757e25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f5d2e8186f0173d7862b1d39fb3dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d2e40c1f1ff5e667d044767de627fff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dcbe8b4bcd32e5a64ebfd873f8cbb2b.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b9e53e4677ae9e2b20d5f7ce0a4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39a52e26180930ad5b56a8a45f28a0f2.png)
(2)过点A的直线m与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/211b9e53e4677ae9e2b20d5f7ce0a4e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/18839099fb51cb1dda11653615ad0a5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0053119d1ca1cafc3c423f0eb6f8b245.png)
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2020-06-12更新
|
3509次组卷
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13卷引用:河南省濮阳市2020届高三第二次模拟考试数学(文)试题
河南省濮阳市2020届高三第二次模拟考试数学(文)试题河南省濮阳市2020届高三第二次模拟考试数学(理科)试题河南省十所名校2019—2020学年高三毕业班阶段性测试(六)数学(理科)河南省安阳市2020届高三第三次模拟考试数学文科河南省十所名校2019—2020学年高三毕业班阶段性测试(六)文科数学陕西省西安中学2022届高三下学期第二次仿真模拟理科数学试题四川省成都市石室中学2022届高三专家联测卷(五)数学(理)试题四川省成都市石室中学2022届高三专家联测卷(五)数学(文)试题(已下线)2022年全国高考甲卷数学(理)试题变式题13-16(已下线)2022年全国高考甲卷数学(理)试题变式题13-16题(已下线)2022年全国高考甲卷数学(理)试题变式题21-23题江西省赣州厚德外国语学校、丰城中学2023届高三上学期10月联考数学(理)试题(已下线)江西省上饶市2023届高三第一次高考模拟考试数学(理)试题变式题21-23
解题方法
4 . 已知曲线C的极坐标方程是
,以极点为原点,极轴为x轴的正半轴建立平面直角坐标系,曲线C经过伸缩变换
得到曲线E,直线
(t为参数)与曲线E交于A,B两点.
(1)设曲线C上任一点为
,求
的最小值;
(2)求出曲线E的直角坐标方程,并求出直线l被曲线E截得的弦AB长.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/094ab3a9f3a40f6fc88a4184371dc745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33da8e7546c7e8dc2f054835d873fb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac10b4c6a1bcbabd65fab2f497765804.png)
(1)设曲线C上任一点为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca538a6d20cb578bd6d23ad843d7c32d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af1ddeed7b35acd5bd47b69ff5a57f38.png)
(2)求出曲线E的直角坐标方程,并求出直线l被曲线E截得的弦AB长.
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2卷引用:陕西省延安市吴起高级中学2019-2020学年高二下学期第三次质量检测数学(文)试题
5 . 在直角坐标系中,过点
的直线
的参数方程为:
(
为参数), 以原点为极点,
轴的正半轴为极轴建立极坐标系,已知曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
,直线
与曲线
分别交于
两点.
(1)写出曲线
和
的普通方程;
(2)若
成等比数列,求
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e262b7599fda82ae392ac10df97feff0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7da88557b24917d0ac05c5c173d3348d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9769c2a8542105bc62280484f5e05db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(1)写出曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8796e80d8e985e0824f4727059e6333.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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6 . 平面直角坐标系xOy中,点M的坐标为
,曲线C的参数方程是
(m为参数),以坐标原点O为极点,x轴的正半轴为极轴建立极坐标系,直线l的极坐标方程为
.
(1)求直线l的直角坐标方程和曲线C的普通方程;
(2)设直线l与曲线C交于A,B两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd0a7f9ee3c6ccaea8dd3d5ad042e5f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75a33938d4f3619fcec2d21b8d1b4330.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b10df189e3aeefc6aad81581dc3d550.png)
(1)求直线l的直角坐标方程和曲线C的普通方程;
(2)设直线l与曲线C交于A,B两点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad45c3d9c64694373638535b6248395b.png)
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7 . 在平面直角坐标系xoy中,以坐标原点为极点,x轴正半轴为极轴建立极坐标系,曲线E的极坐标方程为
,直线l的参数方程为
(t为参数).点P为曲线E上的动点,点Q为线段OP的中点.
(1)求点Q的轨迹(曲线C)的直角坐标方程;
(2)若直线l交曲线C于A,B两点,点
恰好为线段AB的三等分点,求直线l的普通方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e74c4ea76021f44fa7b4d2d91e3d7c2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1108bdbdc840746ab6c3428e82f6144.png)
(1)求点Q的轨迹(曲线C)的直角坐标方程;
(2)若直线l交曲线C于A,B两点,点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/520f3bd96a22d9251fd60470d8029966.png)
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2020-05-31更新
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388次组卷
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6卷引用:2020届陕西省宝鸡市高三高考模拟检测(三)数学(理科)试题
2020届陕西省宝鸡市高三高考模拟检测(三)数学(理科)试题2020届陕西省宝鸡市高三第三次高考模拟检测数学(文)试题陕西省宝鸡市2020届高三高考数学(文科)(三模)模拟试题(已下线)理科数学-6月大数据精选模拟卷03(新课标Ⅰ卷)(满分冲刺篇)(已下线)文科数学-6月大数据精选模拟卷03(新课标Ⅰ卷)(满分冲刺篇)河南省巩义市2020届高三模拟考试(6月)数学(理)试题
8 . 在平面直角坐标系
中,以原点
为极点,
轴的非负半轴为极轴,建立极坐标系,得曲线
的极坐标方程为
.若过
,倾斜角为
,且
的直线交曲线
于
、
两点.
(1)求
的值;
(2)求弦
的中点
的坐标.
![](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/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61cae86283994e13c9fb79d0d4398e1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ada12bf3887ed72a301223d6c706a8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/969b106918cf44777d177a0538da8cb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2708fa6298e52f617383efc175b71ddc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b9cb8e6ff801523b0304576cd69fd2d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05b15fc63694413947a758082800c7fc.png)
(2)求弦
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4a949c00526fddf435423272cf10f25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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2020-05-25更新
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141次组卷
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2卷引用:2020届陕西省榆林市高三第三次模拟数学(文)试题
名校
9 . 在直角坐标系xOy中,曲线
的参数方程为
(t为参数,
),点
.以坐标原点O为极点,x轴正半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
(1)求曲线
的直角坐标方程,并指出其形状;
(2)曲线
与曲线
交于A,B两点,若
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f174897358da5a7add98b4b1ca6480cf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10adc3992efb2badc23f81d36faa206f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ca0313b09165aaf0c59d7aa431c6f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a876cfe929538939edef17f8f129864f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a9e749c69ae2a7e262ed5dda0013777.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b4179e1ab8705cf19ea7aaf48888843.png)
您最近一年使用:0次
2020-09-19更新
|
584次组卷
|
14卷引用:【市级联考】陕西省榆林市2019届高三第四次普通高等学校招生模拟考试文科数学试题
【市级联考】陕西省榆林市2019届高三第四次普通高等学校招生模拟考试文科数学试题【市级联考】陕西省榆林市2019届高三第四次普通高等学校招生模拟考试理科数学试题2019届陕西省榆林市高三第四次模拟考试数学(理)试题2019届陕西省榆林市高三第四次模拟考试数学(文)试题【市级联考】湖南省郴州市2019届高三第三次质量检测数学(文)试题2019届湖南省长沙市雅礼中学高三下学期5月月考数学(文)试题2019届吉林省普通高中高三第三次联合模拟数学(理)试题2019届吉林省普通高三第三次联合模拟数学(文)试题2019届湖南省长沙市雅礼中学高三下学期5月高考适应性考试理科数学试题2019届湖南省郴州市高三第三次质量检测数学(理)试题重庆市外国语学校2019-2020学年高三下学期4月月考数学(文)试题2020届重庆市第一中学高三下学期6月模拟数学(理)试题吉林省长春市第二实验中学2020-2021学年高三上学期期中考试数学(理)试题吉林省长春市第二实验中学2020-2021学年高三上学期期中考试数学(文)试题
名校
解题方法
10 . 已知曲线
的参数方程为
(
为参数),直线
的参数方程为
(
为参数).
(1)写出直线
与曲线
的普通方程;
(2)设曲线
经过伸缩变换
得到曲线
,过点
作倾斜角为
的直线交曲线
于
,
两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8725d4eeab5b16e517dc28c5eccac175.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a68a46b070d8e2a40acb588f6d92b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(1)写出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac2860b67e60b246ea91a835bb4d44f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ce47fde921058026708a4321a0e213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be6a6301878fed2a01413020b27310a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4c8a9c4957431681ddfc77895a88508.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/7a7dbc5f85292795579155dfd3baff0e.png)
您最近一年使用:0次
2020-05-08更新
|
133次组卷
|
3卷引用:甘肃省兰州市第一中学2019-2020学年高二4月月考数学(文)试题