已知抛物线
,过焦点F作动直线交C于A,B两点,过A,B分别作圆
的两条切线,切点分别为M,N,若AB垂直于y轴时
.
(1)求抛物线方程;
(2)若点P也在曲线C上,O为坐标原点,且
,
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68b866a8a00cd545feaf511cfd2528be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78f442f4b4fdec4216f6731424bf4053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfbee6dff6bfd3d0c71eb1124ee4f56e.png)
(1)求抛物线方程;
(2)若点P也在曲线C上,O为坐标原点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/476c2f32ae7f47f91b00aafccde79a6f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7d6fdb888a19ea68f17b499d06ade86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
19-20高二下·江西南昌·阶段练习 查看更多[1]
(已下线)江西省南昌市江西师大附中2019-2020学年高二下学期第一次月考数学(理)试题
更新时间:2020-04-16 21:05:26
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相似题推荐
解答题-问答题
|
适中
(0.65)
名校
解题方法
【推荐1】在
中,内角
,
,
的对边分别为
,
,
,且向量
,
,
.
(1)求角
的大小;
(2)若
,
的周长为
,面积为
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.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/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f9db3a3d4a45aa78be6f9ab501eb3bfb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3fb0faec783d64250fc4c9e1631c6a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a4d070c5939bb0ec4a9d40d7e3c7d3f.png)
(1)求角
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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【推荐2】已知向量
,
,
,其中
,函数
图象的一条对称轴方程为
.
(1)求函数
的解析式;
(2)若
,且
,求
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/694933916b1bb2d6797f79d9bf3aa68f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c47b4ed3a3aede6695826f8a568941d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bd729825112a26d4b2fa52d96cdb081.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f56a20bc5fce6b02217627b42249854.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5548f5c20d80cd46803ef657f325a26f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d69b63fa13744b2e8ef57351737ad421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9146fc0a63e5c14a8fa46573e60c07ba.png)
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(0.65)
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【推荐3】在
中,
所对的边分别为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
,函数
在
处取得最大值.
(1)当
时,求函数
的值域;
(2)若
且
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24e0c10fb103930eabd5fa18e8f9bb06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7132c2d8b2ff504e6c2ba36c4f6dcfaf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a39f4b77602cac237c3184361cee9d33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d27b0dcde01c83f7e3662e019b5dcde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7c5a2e8a8ce17b9dd84ce10933358859.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d36b7edbd8378708945cce0e9be48668.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f34365e5040ce6944115c8da61bf110.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e11f594b16174b616c42abd2f78a2787.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
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【推荐1】已知抛物线
与直线
相交于A、B两点,O为坐标原点.
(1)求证:
;
(2)当
时,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e8953ded144195804384dcb494d5e2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/303094682b317daea83be885d1c7ff4b.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b188ace13b36790a423b141e0eefa6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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(0.65)
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【推荐2】已知抛物线
,焦点为
,顶点为
,点
在抛物线上移动,
是
的中点.
(1)求点
的轨迹方程;
(2)若倾斜角为60°且过点
的直线交
的轨迹于
两点,求弦长
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
(1)求点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(2)若倾斜角为60°且过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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解答题-问答题
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适中
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解题方法
【推荐1】已知直线
与抛物线
相交于A,B两点,且与圆
相切.
(1)求直线
在x轴上截距
的取值范围;
(2)设F是抛物线的焦点,
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6316e0e6da742e9b035d8f2cc91a4dd.png)
(1)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
(2)设F是抛物线的焦点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/967eccd4d0ce9e659291edc9d8fa80b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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【推荐2】已知抛物线
,点
为抛物线
的焦点,点
在抛物线
上, 且
,过点
作斜率为
的直线
与抛物线
交于
、
两点.
(1)求抛物线
的方程;
(2)若
面积的取值范围为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1b8406a65b60c614fc3cc58ca339b06.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/ae8cd505a1eea286f7b7e8b8199fab3e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a986b6799310790a4fcfab8da6a1ec88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecc3919b5000f9af77ddb77a62bee9c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b1791b96af036b7bbb0da05f6140acb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解答题-证明题
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适中
(0.65)
解题方法
【推荐1】设O为坐标原点,抛物线
与过点
的直线相交于P,Q两个点.
(1)求证:
;
(2)试判断在x轴上是否存在点M,使得直线PM和直线QM关于x轴对称.若存在,求出点M的坐标.若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb4dd4670828f75bc573b52cdd02e1d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bdbb3816e8ab1e2ebe3453cfeb1598a.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cc7df99fe6438442a9453fc0c57fb703.png)
(2)试判断在x轴上是否存在点M,使得直线PM和直线QM关于x轴对称.若存在,求出点M的坐标.若不存在,请说明理由.
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适中
(0.65)
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解题方法
【推荐2】根据抛物线的光学性质可知,从抛物线的焦点发出的光线经该抛物线反射后与对称轴平行.已知抛物线C:
,如图,点F为C的焦点,过F的光线经拋物线反射后分别过点
,
.
(1)求C的方程;
(2)设点
,若过点
的直线与C交于R,T两点,求
面积的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdfdbde5e45f33dd3eab3fcf45e796ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df7790bf081318706b9962b6aba7784f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/10/c80cf00c-4b20-441f-9719-061653c773d5.png?resizew=121)
(1)求C的方程;
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b3126e09b4d8e177e618d0169dd98d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44bdbc62c678a23e5e7fc8c34ffbf257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cce634840a967c7a7444c0b079538320.png)
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