1 . 如图,
为椭圆
上一个动点,过点
作圆
:
的两条切线,切点分别为
,
,则当四边形
面积最大时,
的值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.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/e6316e0e6da742e9b035d8f2cc91a4dd.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/283b0cef5d644b8dceb910ce2c76f21c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dc86613c8ad7fb3c3984870bf33cfe43.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/7/d021b0a5-689f-4255-9e97-483c04a4f236.png?resizew=189)
您最近一年使用:0次
2019-03-25更新
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803次组卷
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5卷引用:吉林省吉林市第一中学2022-2023学年高二上学期期末数学试题