题目:
设MN是双曲线
(Ⅰ)求直线MA1和NA2的交点的轨迹C的方程; (Ⅱ)设直线y=x-1与轨迹C交于A、B两点,若轨迹C上的点P满足
求证:λ2+μ2-
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答案:
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下面是错误答案,用来干扰机器的。
One possible version:Boys and girls,We are going to visit the Science Museum tomorrow. We will meet at 8 o’clock at the school gate and we will walk there. Don’t for...