2020高三·江苏·专题练习
1 . 已知抛物线x2=4y的焦点为F,准线为l,P为抛物线上一点,过P作PA⊥l于点A,当∠AFO=30°(O为坐标原点)时,PF=________ .
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2020高三·江苏·专题练习
2 . 已知P是抛物线y2=2x上动点,A
,若点P到y轴的距离为d1,点P到点A的距离为d2,则d1+d2的最小值是________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d6e9db5cd6003fe63871554d5bb0c4e.png)
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3 . 已知点M抛物线
上的一点,F为抛物线的焦点,点A在圆
上,则
的最小值________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00d0623fa3e53c3b04b8a27215ca7c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a2e93d1cad52d2190c0a39832c477b.png)
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4 . 已知点
是抛物线
上的一个动点,则点
到点
的距离与点
到该抛物线准线的距离之和的最小值为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/448c0a5ee776d19ce8e42ac9a5fd27c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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5 . 已知
是抛物线
上一点,
为其焦点,点
在圆
:
上,则
的最小值是__________ ;此时
坐标为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42102c1c07562853219ca5918803a27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc962d46801b04ea48211602f31cfb50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8a2e93d1cad52d2190c0a39832c477b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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2020-01-07更新
|
212次组卷
|
2卷引用:辽宁省实验中学东戴河分校2019-2020学年高二上学期12月月考数学试卷
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6 . 若抛物线
上一点
到其焦点
的距离为
,
为坐标原点,则
的面积为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10f4123c19136d3a4dc040dce8e34e14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61128ab996360a038e6e64d82fcba004.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f568cd953b861a99ec3fac01f75cffbb.png)
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7 . 已知
、
是抛物线
上的两点,直线
垂直于
轴,
为抛物线的焦点,射线
交抛物线的准线于点
,且
,
的面积为
,则
的值为_____ .
![](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/2ddd8188218c214b934c35564f87673c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274cf35acb4a1748d15c39d15a9bea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/770c52b52b00212f4e2664a03ecab6ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3920155c87affb99bc20f1336dba02.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd86353f66bf04bebdca8f3d3c816512.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
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8 . 已知过抛物线y2=-4x的焦点F,且斜率为
的直线与抛物线交于A、B两点,则
=______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b21241b1d80779b1710180269010ea.png)
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9 . 已知
是抛物线
的焦点,点
,抛物线上有某点
,使得
取得最小值,则点
的坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ac62b1ade07205ae2693ec1ab135def.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7260181cc30ac7f676e07f9af788e8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/508734095955bb96d52f37be4e681700.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
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2019-11-30更新
|
655次组卷
|
2卷引用:江西省南昌市八一中学、洪都中学、十七中、实验中学、南师附中五校2019-2020学年高二上学期期中数学(理)试题
10 . 下列说法中所有正确的序号是_________
①两直线的倾斜角相等,则斜率必相等;
②若动点
到定点
和定直线
的距离相等,则动点
的轨迹是抛物线;
③已知
、
是椭圆
的两个焦点,过点
的直线与椭圆交于
、
两点,则
的周长为
;
④曲线的参数方程为
为参数
,则它表示双曲线且渐近线方程为
;
⑤已知正方形
,则以
、
为焦点,且过
、
两点的椭圆的离心率为
.
①两直线的倾斜角相等,则斜率必相等;
②若动点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764551064af30b542042b5e501e7e57d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/890dbab94a66ceb9a45477e9675d1b8a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.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/8b5e56b5cbcf69756792fc934bcc20cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
④曲线的参数方程为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72153c7bba827ea1849d47fd9c2091cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9dec7f6309562276a49560c17c98dedf.png)
⑤已知正方形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c34e01955f8c8fe2f0041b35d8d602a7.png)
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2019-11-30更新
|
309次组卷
|
2卷引用:江西省南昌市八一中学、洪都中学、十七中、实验中学、南师附中五校2019-2020学年高二上学期期中数学(理)试题