1 . 已知点
,直线
与抛物线
交于不同两点
、
,直线
、
与抛物线的另一交点分别为两点
、
,连接
,点
关于直线
的对称点为点
,连接
、
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/c02fe318-529e-4735-8cf4-55b03a1e3412.png?resizew=180)
(1)证明:
;
(2)若
的面积
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7a5f1b6f209d1a805437046ca6ef79dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a2558199049bfd1b1df0846b02019c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84d454c82d9e52747563d47b68099249.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb6ede9761b5b90f8dc137708e1ee90f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/25/c02fe318-529e-4735-8cf4-55b03a1e3412.png?resizew=180)
(1)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10df84d553a8826a7ce9bff4bf0d95b9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc1ddff9c93c234562c44d1808831bc5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/34b74029278bbc81bd5950fcf739dfca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次
解题方法
2 . 如图,已知抛物线
的焦点为
,
为坐标原点,直线
与抛物线
相交于
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/5/90454f7c-9f4b-4b20-961e-97b23c25ba88.png?resizew=130)
(1)当
,
时,求证:
;
(2)若
,点
关于直线
的对称点为
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.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/5f24e616b5a35ff372c78c1472f156ab.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://img.xkw.com/dksih/QBM/editorImg/2022/11/5/90454f7c-9f4b-4b20-961e-97b23c25ba88.png?resizew=130)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5095a28bb1b91bf6bed9e2cfbd76bb18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f06408895febc126c2ae409e807349c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f20bf927d76ca5c9679922cc89f489.png)
您最近一年使用:0次
3 . 已知抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e4c118f3cad7f4e240ea9dc656be5e.png)
,过焦点
的斜率存在的直线与抛物线交于
,
,且
.
![](https://img.xkw.com/dksih/QBM/2020/3/9/2415647346606080/2416307640762368/STEM/3608a9f028e245e5a2afcc96a68193fb.png?resizew=168)
(1)求抛物线的方程;
(2)已知
与抛物线交于点
(异于原点),过点
作斜率小于
的直线交抛物线于
,
两点(点
在
,
之间),过点
作
轴的平行线,交
于
,交
于B,
与
的面积分别为
,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59e4c118f3cad7f4e240ea9dc656be5e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bf8197e4f3fd18815045d29c357a863.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb2b8fbf0e9de2c52afb0e52df539c62.png)
![](https://img.xkw.com/dksih/QBM/2020/3/9/2415647346606080/2416307640762368/STEM/3608a9f028e245e5a2afcc96a68193fb.png?resizew=168)
(1)求抛物线的方程;
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d77f5191798242b7b9b88a75e17e4425.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e09e7a84f80b4f541010a0094c51fe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88e9f7d1272b7344346b58b660aa260a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b414c1219b65cbb08767f3fa0c7d2ece.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b8189f7b0ffe4d20bf0fad43b4ed589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad5a9147b25285124851a61c7d1a24a.png)
您最近一年使用:0次
2020-03-10更新
|
488次组卷
|
3卷引用:2020届浙江省金华市金华十校高三11月模拟考试数学试题
4 . 已知点
在抛物线
上,点
是抛物线
的焦点,线段
的中点为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/34a5bd41-03c4-419c-96e2-98093763adca.png?resizew=179)
(1)若点
的坐标为
,且
是
的垂心,求直线
的方程;
(2)若点
是直线
上的动点,且
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e3a1467ecf286e3cadaf5aa006606f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/34a5bd41-03c4-419c-96e2-98093763adca.png?resizew=179)
(1)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d0924ff22fff9f5639feb0ceeece80d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4201d3bead2e48cc80052b1418f23db9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eefa44964db83759aff6fc8dd7ef8f28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57dfc9d1109fe41145cc892b5702d9fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
您最近一年使用:0次
解题方法
5 . 已知抛物线
,点
,
为坐标原点,若抛物线
上存在一点
,使得
,则实数
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa2c731aaa4005382d5b4324e29fbb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fe4b59c2f40deafebe46420af82cf03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/120b61b13ed89c37633ee1b288f64e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
6 . 如图,P是抛物线E:y2=4x上的动点,F是抛物线E的焦点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/fb521861-2793-4598-bb6a-b126f2caf018.png?resizew=206)
(1)求|PF|的最小值;
(2)点B,C在y轴上,直线PB,PC与圆(x﹣1)2+y2=1相切.当|PF|∈[4,6]时,求|BC|的最小值.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/8/fb521861-2793-4598-bb6a-b126f2caf018.png?resizew=206)
(1)求|PF|的最小值;
(2)点B,C在y轴上,直线PB,PC与圆(x﹣1)2+y2=1相切.当|PF|∈[4,6]时,求|BC|的最小值.
您最近一年使用:0次
2019-12-31更新
|
993次组卷
|
5卷引用:浙江省宁波市宁波十校2019-2020学年高三上学期11月月考数学试题
浙江省宁波市宁波十校2019-2020学年高三上学期11月月考数学试题(已下线)专题15 直线与椭圆、抛物线的位置关系-2021年浙江省高考数学命题规律大揭秘【学科网名师堂】(已下线)第41讲 解析几何的同构问题-2022年新高考数学二轮专题突破精练广西名校2022届高三第一次联合考试数学(文)试题广西名校2022届高三第一次联合考试数学(理)试题
解题方法
7 . 已知抛物线
和直线
,若抛物线
上存在关于直线
对称的相异两点
,则
的取值范围是________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aefcbc03a5c916ebb20f891a0fe7e0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
您最近一年使用:0次
名校
解题方法
8 . 已知
是抛物线
的焦点,
是抛物线上的两个动点,满足
,过弦
的中点
作抛物线准线的垂线
,垂足为
.则使不等式
恒成立的
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd446db7f240bcc91fc5d43956c2f0b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cc4908fa31c032d29c1b1057d7dbaa0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ada348e171e284f24024c0d7b5b7c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
9 . 如图,过抛物线C:y2=2px(p>0)的准线l上的点M(﹣1,0)的直线l1交抛物线C于A,B两点,线段AB的中点为P.
![](https://img.xkw.com/dksih/QBM/2020/1/18/2382469795897344/2425232644603904/STEM/1b02f528-2c3b-4511-bcfa-eaa28a592563.png)
(Ⅰ)求抛物线C的方程;
(Ⅱ)若|MA||MB|=λ|OP|2,求实数λ的取值范围.
![](https://img.xkw.com/dksih/QBM/2020/1/18/2382469795897344/2425232644603904/STEM/1b02f528-2c3b-4511-bcfa-eaa28a592563.png)
(Ⅰ)求抛物线C的方程;
(Ⅱ)若|MA||MB|=λ|OP|2,求实数λ的取值范围.
您最近一年使用:0次
名校
10 . 已知点
在抛物线
上,
是直线
上的两个不同的点,且线段
的中点都在抛物线上.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/7174e695-6cc9-45b0-a5a3-29faef011658.png?resizew=180)
(Ⅰ)求
的取值范围;
(Ⅱ)若
的面积等于
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb57bb18755127be041d346444a4743e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f6bce3d91ca23b86d8c6625f2632e437.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c31c4f39399ec245a67db2933ed639f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5671fb25040a712a49e8c8148d67d300.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/7174e695-6cc9-45b0-a5a3-29faef011658.png?resizew=180)
(Ⅰ)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8112f9185c7d48b015d9cd0525616b31.png)
(Ⅱ)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ec978eb43bc4f9e7df83b0d0195dcda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8112f9185c7d48b015d9cd0525616b31.png)
您最近一年使用:0次
2019-10-22更新
|
567次组卷
|
6卷引用:浙江省浙南名校联盟2019-2020学年高三上学期第一次联考数学试题1
浙江省浙南名校联盟2019-2020学年高三上学期第一次联考数学试题1浙江省浙南名校联盟2019-2020学年高三上学期第一次联考数学试题2(已下线)专题9.8 直线与圆锥曲线的位置关系(练)-浙江版《2020年高考一轮复习讲练测》上海市建平中学2019-2020学年高三上学期10月月考数学试题(已下线)专题9.6 直线与圆锥曲线(练)-2021年新高考数学一轮复习讲练测(已下线)专题9.6 直线与圆锥曲线(精讲)-2021年新高考数学一轮复习学与练