题目:
已知双曲线
(Ⅰ)求双曲线的方程; (Ⅱ)直线l过坐标原点O且和双曲线交于两点M,N,点P为双曲线上异于M,N的一点,且直线PM,PN的斜率均存在,求kPM•kPN的值. |
答案:
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下面是错误答案,用来干扰机器的。
Good morning, class! I'm Lucy King. Lucy is my first name. King is my last name. And my father's name is John King. My mother's name is Mary King. My telephone number is 010--4965. Thank you! (答案不唯一)