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1 . 已知抛物线
的焦点为
,
是抛物线
上一点,且满足
.
(1)求抛物线
的方程;
(2)已知斜率为2的直线
与抛物线
交于
,
两点,若
,
,
成等差数列,求该数列的公差.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a21beb3c88e85fd5891d3a98fdd9ae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d67a677e51e51d2b7956e65c9d36dbb.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知斜率为2的直线
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56da87db845e3380ff139e71cf3a9a80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d4ed6579a418b71a073edc9a320332a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76ac3ec6170bee3cace533735edcd6de.png)
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2021-05-09更新
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526次组卷
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4卷引用:河南省开封市2021届高三三模文科数学试题