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解题方法
1 . 已知椭圆
的左、右焦点分别为
、
,点P,Q为椭圆C上任意两点,且
,若三角形
的周长为8,
面积的最大值为2.
(1)求椭圆C的标准方程;
(2)设椭圆C外切于矩形
,求矩形
面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df1dad0690278e2e7c069a27612b7636.png)
![](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/dcf445c86b2e58925026406a88692cf2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bd4dea64167cc99341d565844c90c03.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
(1)求椭圆C的标准方程;
(2)设椭圆C外切于矩形
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
您最近一年使用:0次
2022-05-23更新
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1410次组卷
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3卷引用:重庆市涪陵高级中学校2022届高三下学期冲刺适应卷(二)数学试题
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2 . 设函数
,若函数
在区间
上单调递增,则实数
的取值范围是__________ ;若函数
恰有5个的零点,则
的取值范围为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7532e67de863eebb7a34488187d7cbf9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab906da86ecdcc3f5832474674a1e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663cb586c6707fbf2f2364a0405e3745.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2021-05-12更新
|
1277次组卷
|
2卷引用:重庆市涪陵高级中学校2022届高三下学期冲刺适应卷(二)数学试题