已知
是椭圆
:
的右焦点,也是抛物线
的焦点,点P为
与
在第一象限的交点,且
.
(Ⅰ)求椭圆
的方程;
(Ⅱ)若椭圆
的左、右顶点分别为
,过
的直线交
于
两点,记△
、△
的面积分别为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09c7fc8e284e4aafd93a630d50a53930.png)
![](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/92257a57932d51b4a7ed832bc6963a51.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(Ⅱ)若椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/176385d91d5e29324fce4a932eff6a79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a74b68d468975a4b599f14764014308.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3637753af5ce86be9c23a9beb6b5067.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
2011·贵州·模拟预测 查看更多[1]
(已下线)2011届贵州省五校高三第四次联考数学理卷
更新时间:2016-11-30 15:52:36
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相似题推荐
解答题-问答题
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解题方法
【推荐1】已知椭圆的焦点是
,
,长轴长是短轴长的2倍,求椭圆上的点到直线
距离的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17618d8d22ebb3fd6835a7eb139b4f95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13683e2ecf2164a0adbfdb9923d210a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4da5fe50936050b05e8bc31f9589671f.png)
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【推荐2】已知以椭圆C:
(a>b>0)的两焦点与短轴的一个端点为顶点的三角形为等腰直角三角形,直线x+y+1=0与以椭圆C的右焦点为圆心,椭圆的长半轴长为半径的圆相切.
(1)求椭圆C的方程;
(2)矩形ABCD的两顶点C、D在直线y=x+2上,A、B在椭圆C上,若矩形ABCD的周长为
,求直线AB的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf487c51fc336d8458d177aacfbab747.png)
(1)求椭圆C的方程;
(2)矩形ABCD的两顶点C、D在直线y=x+2上,A、B在椭圆C上,若矩形ABCD的周长为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b6da1622b0193a7fdcb4ecf2ecab643.png)
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【推荐1】已知抛物线
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
的焦点为
,点
在抛物线
上,且
.
(1)求抛物线
的方程,并写出焦点坐标;
(2)过焦点
的直线
与抛物线
交于
,
两点,若点
满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75de1947893e5c7a4d98d4458398fd6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82388095a4e6d9decccae2b24fe28138.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7bf417767442935d2b9e49d18fbea79.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a98ef6b26186130f8d88c66d3b3c78fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73e8e22765029ced3348067d7265f158.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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【推荐2】离心率为e的椭圆
经过抛物线
的焦点,且直线
是双曲线
的一条渐近线.椭圆C的左、右顶点分别为A,B,点P,Q为椭圆上异于A,B的两动点,记直线
的斜率为
,直线
的斜率为
.
(1)求椭圆C的标准方程;
(2)若直线
过x轴上一定点
,求
(用含m的式子表示).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c21ab40ef86e0f4c996da62ecbbef7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c465114dc2665d74246240b1d4d26ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20a541b81584a032f571159ea152c85a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf702adb116c1e46569eb7050d029f49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
(1)求椭圆C的标准方程;
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1641947153c80b987320885a2b57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67c623950b5795d5fb4daeb8102a8df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
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【推荐1】如图,椭圆C:
=1(a>b>0)的右焦点为F,右顶点、上顶点分别为点A、B,已知椭圆C的焦距为2,且|AB|=
|BF|.
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572554438860800/1572554444374016/STEM/17b2cddec896460dbacd9504ee474b00.png)
(1)求椭圆C的方程;
(2)若过点P(0,﹣2)的直线l交椭圆C于M,N两点,当△MON面积取得最大时,求直线l的方程.
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572554438860800/1572554444374016/STEM/5ae93f4e4e2d4a2e981b35513c63aa43.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572554438860800/1572554444374016/STEM/87279c3ee1c44a3bbdc2b497e6f99c2e.png)
![](https://img.xkw.com/dksih/QBM/2016/3/23/1572554438860800/1572554444374016/STEM/17b2cddec896460dbacd9504ee474b00.png)
(1)求椭圆C的方程;
(2)若过点P(0,﹣2)的直线l交椭圆C于M,N两点,当△MON面积取得最大时,求直线l的方程.
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【推荐2】已知椭圆
,点
,直线
与椭圆C交于不同的两点M,N.
(1)当
时,求
的面积;
(2)设直线PM与椭圆C的另一个交点为Q,当M为线段PQ的中点时,求k的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/279cefeb5c389a37a71e5fd3925f5954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566e3dcca753f8a4862a5c08132ac302.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb0d6d0cfe389abca252332223b5da17.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3a2a34b4317deffa40ba34e269c2b81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
(2)设直线PM与椭圆C的另一个交点为Q,当M为线段PQ的中点时,求k的值.
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【推荐1】已知
是椭圆
的两个焦点,
为坐标原点,点
在椭圆上,且
,圆
是以
为直径的圆,直线
与圆
相切,并且与椭圆交于不同的两点
.
(1)求椭圆的标准方程;
(2)当
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7498cbc02b3b8bf7531c6b8f37ecf12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9397e308ce864ac82e59260ad88e9257.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/643ef7d761de0e794fc39937dc72ac6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fc5bd66dd6d5e09ff0893a938aed56e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求椭圆的标准方程;
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7470d8a24390a7d07d73ed806656590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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【推荐2】已知椭圆
的左焦点为
,长轴长为
.过右焦点
的直线
交椭圆C于
两点,直线
分别交直线
于点
.
(1)求椭圆C的方程;
(2)设线段
中点为
,当点
位于
轴异侧时,求
到直线
的距离的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e4e568d9cd57c442f011a787ab8aaf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b10e8abf8690e4b129466ddb918bcc94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a8e0c541d5767d27b388b3b94869bbf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d4cadeffffd9480a95a17109570dca.png)
(1)求椭圆C的方程;
(2)设线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d4cadeffffd9480a95a17109570dca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
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