已知平面内的两个定点
,
,
,平面内的动点
满足
.记
的轨迹为曲线
.
(1)请建立适当的平面直角坐标系,求
的方程;
(2)过
作直线
交曲线E于A,B两点,
为坐标原点,求
面积的最大值.
![](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/9efbe4a54a27dc48e3f52d6249bd1681.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4eed5b1b5a80e66f5a6cd08be019376c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)请建立适当的平面直角坐标系,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2b83beedb3438153e6f728545fe3e03.png)
21-22高二上·云南昆明·期中 查看更多[2]
更新时间:2021-11-29 15:08:56
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解答题-问答题
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适中
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名校
【推荐1】在△ABC中,角A,B,C的对边分别为a,b,c,且
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适中
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名校
解题方法
【推荐2】在
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(2)若
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【推荐1】已知点
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86fa5d111dff7be72b77f4b7edd5c8fe.png)
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解答题-问答题
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适中
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【推荐2】在平面直角坐标系
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【推荐1】如图,在直角坐标系
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![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/24/72b2fc87-1979-485a-bb12-368a6a2915d6.png?resizew=130)
(1)求曲线
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
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(1)求曲线
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(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad492d5033448d419df9c9b75a71894e.png)
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解答题-问答题
|
适中
(0.65)
解题方法
【推荐2】已知线段
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