解题方法
1 . 圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
内有一点
为过点P且倾斜角为
的弦
(1)判断点
与圆C的位置关系
(2)当
时,求弦AB的长
(3)当P为弦AB靠近A的三等分点且点A在第一象限,求直线AB方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f5d967ad135991b6075ee45df55643.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/605f23776739898623066f29beaed78f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
(1)判断点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17a80dee44d744cf9ce671d4e8c0948.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff0174ecb3effe04d6137463dcad183c.png)
(3)当P为弦AB靠近A的三等分点且点A在第一象限,求直线AB方程
您最近一年使用:0次
名校
解题方法
2 . 过
的直线
与圆
:
交于
、
两点,当
最大时,直线
的方程为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd19ea659b6d90c487e29118ae2fd2c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd6d5018b988d9843479cfdcfd3a522d.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/cbe89d0ce747d21036a5ba5415a88d78.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
您最近一年使用:0次
2022-10-10更新
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1457次组卷
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3卷引用:江苏省淮安市金湖中学、洪泽中学等四校2022-2023学年高二上学期第一次学情调查数学试题