名校
1 . 已知椭圆
,过原点的两条直线
和
分别与椭圆交于点
和
. 记得到的平行四边形
的面积为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/e5e7579d-6f39-4d09-8c5d-a1b51af9f830.png?resizew=186)
(1)设
,用
的坐标表示
;
(2)设
与
的斜率之积与直线
的斜率之积均为
,求面积
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b24214f111f7c6d2b64e53ad970438b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c29a7e8eea08197bf53164a560bee58.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c593ebdb2f1934a0cb56f8c44f454f8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/31/e5e7579d-6f39-4d09-8c5d-a1b51af9f830.png?resizew=186)
(1)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee73980f65971f38c02d23108baa8a95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0df22722f032dadde608aae469736967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/354a57a4fda4f140dd869138539fa652.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
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2019-11-06更新
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403次组卷
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2卷引用:湖北省鄂南高中2019-2020学年高三上学期10月月考数学(理)试题