解题方法
1 . 设圆D:
与抛物线C:
交于E,F两点,已知![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb7aad3f2957f8beb69665aa1c60919.png)
(1)求抛物线C的方程;
(2)若直线l:
与抛物线C交于A,B两点
点A在第一象限
,动点
异于点A,
在抛物线C上,连接MB,过点A作
交抛物线C于点N,设直线AM与直线BN交于点P,当点P在直线l的左边时,求:
①点P的轨迹方程;
②
面积的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb5a589fdbfd61132f773e457a221797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3764ba3aa0a241787f4661026bb14053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fb7aad3f2957f8beb69665aa1c60919.png)
(1)求抛物线C的方程;
(2)若直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fb403a333c9e8fd9a3e7c100fb6017b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94b554486bc34b098b4b3e878a2c4613.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca51d433190304dd9811b0a1f7b4beb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4c51b7b9dcf8c1b17609ae6999e46f6f.png)
①点P的轨迹方程;
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
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2 . 设
为平面上两点,定义
、已知点P为抛物线
上一动点,点
的最小值为2,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
_________ ;若斜率为
的直线l过点Q,点M是直线l上一动点,则
的最小值为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/093c6d5bcaa69cea79b24688f5d1bd97.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/50061a63fdbd8394471c07f333d9fec4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4b8503f4706b8321e4e79a87eadea84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/314837d3a10726c5f83528f791d20020.png)
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2024-06-04更新
|
883次组卷
|
4卷引用:山东省枣庄市2024届高三三调数学试题
山东省枣庄市2024届高三三调数学试题山东省青岛市2024届高三下学期第二次适应性检测数学试题(已下线)山东省济南市2024届高三下学期5月适应性考试(三模)数学试题湖北省武汉市汉铁高级中学2024届高考数学考前临门一脚试卷
3 . 已知抛物线
的焦点F到准线的距离为2,O为坐标原点.
(1)求E的方程;
(2)已知点
,若E上存在一点P,使得
,求t的取值范围;
(3)过
的直线交E于A,B两点,过
的直线交E于A,C两点,B,C位于x轴的同侧,证明:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04c42d88e496a17562d25195301e0ac2.png)
(1)求E的方程;
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b312367cf51225ea3bfbee2103b0c30.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec17f0a798a800ba556e21e2bb78d24b.png)
(3)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad3a4d8eb0a4f3dd417124a19f60066.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ccd9be5d6b47dda528abe9b2bf6ff46d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d22df2977de56cc69be0c1e847653d7a.png)
您最近一年使用:0次
名校
解题方法
4 . 直线
与抛物线
相交于
,
两点,过
,
两点分别作该抛物线的切线,与直线
均交于点
,则下列选项正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b26dff558266a554cbf182a7b4ef42f.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/dc3c79b72ecd228354b0a8ec40959957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
A.直线![]() ![]() |
B.![]() ![]() ![]() |
C.存在某一条直线![]() ![]() |
D.设点![]() ![]() ![]() ![]() ![]() |
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5 . 已知抛物线
,焦点为
,过
作两条关于直线
对称的直线分别交
于
两点.
(1)判断直线
的斜率是否为定值?若是,求出定值;若不是,请说明理由.
(2)若
三点在抛物线
上,且满足
,证明
三个顶点的横坐标均小于2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75d41bd21b19b7e1ba41d904104a9229.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfb23a9e07213cb76990dbedfc7feca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89b6e4f0c8497a9d4e6b887dc4fda0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b94469fd19f40116e2dec334919d6586.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/804ea12070cefc8ca3bde7697c82ad6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d631f45bc652539853f236952afa5bbf.png)
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6 . 第一象限的点
在抛物线
上,过点
作
轴于点
,点
为
中点.
(1)求
的运动轨迹曲线
的方程;
(2)记
的焦点分别为
,则四边形
的面积是否有最值?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78085edbc651832e493d037594d205b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24d0b82d9c9b2e6de5141b0a82e42c09.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/78085edbc651832e493d037594d205b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f420670a58330f3377c5906af03e305c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da5b8b7647e3f1ebbc8af579580c25cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636f81dbf897fe18e90a962964f0f699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fbde43cf56c148c48e1a2a3fc1670f2.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/636f81dbf897fe18e90a962964f0f699.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62cde0eb1accdc00d575fd291fb07673.png)
(2)记
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06a42d1b8468f34296491ba478adc7ce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1daf054dfdaba105b7d0029da94c4bce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c36aa002197f891acc1132c887871ce.png)
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7 . 如图,已知四边形
的四个顶点都在抛物线
上,且A,B在第一象限,
轴,抛物线在点A处的切线为l,且
.
的斜率分别为k和
,求
的值;
(2)P为
与
的交点,设
的面积为
,
的面积为
,若
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04a20e3b66f99144a013bba3c2c00a7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef7ce5d5cc777ef4d5b890cc9cbb70b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ae076e151c24084f1ca2ca502dede95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7e08d5c04f0431fb57b33a01717b599.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/35cc2384c66ee5559a9e5ec40dd75669.png)
(2)P为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/661ff55b5ebbadfb600989af3cfce2fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55a675310c8ba418e5a59beb7317e21e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2718f4bc0d51cb2a6c91ad7069954550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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8 . 已知抛物线
的焦点
在
轴的正半轴上,顶点是坐标原点
是圆
与
的一个交点,
是
上的动点,且
在
轴两侧,直线
与圆
相切,线段
线段
分别与圆
相交于点
.
(1)求
的方程;
(2)
的面积是否存在最大值?若存在,求使
的面积取得最大值的直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a9014cca417cae993ed524c0a7e367.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56648a303009f944e1a9983c3f62c7b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d180e724b66d757b466e953a3f7abb17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20ebaa32f4f1f4f807ca9aeb7fb29951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/919eab7a4cd4e467fd50d301a03e70ec.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b90e0f35eda1a729fed485f83da5ea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86e203b7c9a6600e0272c58a23733490.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25dd698d57d1cf239eb8752aecaaa4f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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9 . 曲线
上动点
与
构成
,若
,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b67d93773ed34cfe79fd47025c9dac1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51296b06e4f0ac74bea949ce2d9faa6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03ac378e1dd219184c4a0d722acb10f3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
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2024-02-23更新
|
974次组卷
|
2卷引用:广东2024届高三数学新改革适应性训练三(九省联考题型)
名校
10 . 已知抛物线
,倾斜角为锐角
的直线过其焦点
并与抛物线交于两点
,下列正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f709c2b3d4b0d76d9debaa49a823726.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
A.抛物线上的点到点![]() ![]() | B.三角形![]() ![]() |
C.抛物线在点![]() ![]() | D.若![]() ![]() |
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