已知抛物线C:
的焦点为F,且F与圆M:
上点的距离的最大值为6.
(1)求p的值;
(2)若点Q在M上,QA,QB是C的两条切线,A,B是切点,当
时,求直线AB和y轴的交点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07b2a64eb8178123a8bd13c86274318a.png)
(1)求p的值;
(2)若点Q在M上,QA,QB是C的两条切线,A,B是切点,当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5fe55ec505da4a4804550f3e229e5686.png)
更新时间:2022-02-14 22:21:02
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【推荐1】已知函数
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(1)若
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(2)若
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解答题-证明题
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适中
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解题方法
【推荐2】设函数
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(Ⅰ)设
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(Ⅱ)若函数
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【推荐2】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ce7be37ff9418a9c95d5dc54814ebd9.png)
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【推荐1】已知动点
到
的距离比它到x轴的距离大1,记P得轨迹为曲线
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、
分别与x轴相交于C、D.是否存在实数
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的值;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8701e0cce437edc830438b4fe6277d89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5421a28dc3675ae20190d6090793246e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b454cdb97c408300b50d945f002c2cb.png)
(2)直线l与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11ad94853c7755727f10c56dd2bb90e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a11ad94853c7755727f10c56dd2bb90e.png)
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【推荐2】已知圆心在x轴上移动的圆经过点
,且与x轴,y轴分别交于M,N两个动点,线段MN中点Q的轨迹为曲线
.
(1)求曲线
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,
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(i)求证:
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33cc0f9aa168e43cc5759f017d69b498.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)已知直线l分别与曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96cbbdcb7eb941e701d2b8a3cc7b65b9.png)
(i)求证:
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(ii)设l与x轴交于点G,若
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