在平面直角坐标系xOy中,已知双曲线C:
-
=1(a、b为正常数 )的右顶点为A,直线l与双曲线C交于P、Q两点,且P、Q均不是双曲线的顶点,M为PQ的中点.
(1)设直线PQ与直线OM的斜率分别为k1、k2,求k1·k2的值;
(2)若
=
,试探究直线l是否过定点?若过定点,求出该定点坐标;否则,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7355be4fcbc3130a5951364a3be76d6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5268413295580cfda0755ab458b36b64.png)
(1)设直线PQ与直线OM的斜率分别为k1、k2,求k1·k2的值;
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5efd7b4dff99aa2ebcc4d0a1e24f83ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f89eef3148f2d4d09379767b4af69132.png)
21-22高三上·江苏南通·期末 查看更多[3]
江苏省南通市海安市曲塘高级中学2021-2022学年高三上学期期末适应性考试数学试题(已下线)专题22 圆锥曲线中的定点、定值、定直线问题 微点1 圆锥曲线中的定点问题江苏省盐城市亭湖高级中学2023届高三一模模拟数学试题
更新时间:2022-01-02 20:41:34
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【推荐1】已知双曲线
的一条渐近线的倾斜角为
,右焦点F到其中一条渐近线的距离为1.
(1)求双曲线C的标准方程;
(2)已知直线l与x轴不垂直且斜率不为0,直线l与双曲线C交于M,N两点.点M关于x轴的对称点为
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(1)求双曲线C的标准方程;
(2)已知直线l与x轴不垂直且斜率不为0,直线l与双曲线C交于M,N两点.点M关于x轴的对称点为
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【推荐2】在平面直角坐标系xOy中,已知点
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(1)求曲线C的方程;
(2)若直线
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(1)求曲线C的方程;
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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(2)直线
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