已知点P是椭圆
上一点,椭圆C在点P处的切线l与圆
交于A,B两点,当三角形AOB的面积取最大值时,切线l的斜率等于_______
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eb4402aeb853b22f20992156957ef0fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/79382ba44ba669b5d43fdd5427adf16c.png)
2023·广东汕头·模拟预测 查看更多[6]
广东省汕头市金山中学2023届高三高考模拟数学试题(已下线)第92练 计算速度训练12江苏省镇江中学2023届高三下学期4月月考数学试题湖南省永州市第一中学2024届高三上学期第一次月考数学试题广东省东莞实验中学2023届高三一模数学试题(已下线)广东省佛山市南海区桂城中学2024届高三上学期10月月考数学试题
更新时间:2023-04-06 20:56:15
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【推荐1】曲线
所围成的封闭图形的面积为______ .
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【推荐2】已知
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、
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平分
交
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,
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的面积为__________ .
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【推荐3】
为
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表示![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9d86315677a86bb4dc09d06310f3f1.png)
______ ;若
,且
的面积为
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的最小值为______ .
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解题方法
【推荐1】已知圆
:
,若直线
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与圆
交于
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两点,则弦
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到直线
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______ .
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![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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【推荐1】椭圆
与直线
交于
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中点所在直线的斜率为
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的值是 _____________ .
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【推荐2】已知椭圆
,在椭圆
上存在两点
,
,点
在直线
上,点
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,
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______ .
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