一道圆锥曲线的题..在平面直角坐标系xOy中,动点P到定点F(1,0)的距离比点P到y轴的距离大1,设动点P的轨迹为曲线C,已知动直线l过点Q(4,0)交曲线于AB两点(1)若直线l的斜率为1,求AB的长(2
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![一道圆锥曲线的题..在平面直角坐标系xOy中,动点P到定点F(1,0)的距离比点P到y轴的距离大1,设动点P的轨迹为曲线C,已知动直线l过点Q(4,0)交曲线于AB两点(1)若直线l的斜率为1,求AB的长(2](/uploads/image/z/5574554-26-4.jpg?t=%E4%B8%80%E9%81%93%E5%9C%86%E9%94%A5%E6%9B%B2%E7%BA%BF%E7%9A%84%E9%A2%98..%E5%9C%A8%E5%B9%B3%E9%9D%A2%E7%9B%B4%E8%A7%92%E5%9D%90%E6%A0%87%E7%B3%BBxOy%E4%B8%AD%2C%E5%8A%A8%E7%82%B9P%E5%88%B0%E5%AE%9A%E7%82%B9F%EF%BC%881%2C0%EF%BC%89%E7%9A%84%E8%B7%9D%E7%A6%BB%E6%AF%94%E7%82%B9P%E5%88%B0y%E8%BD%B4%E7%9A%84%E8%B7%9D%E7%A6%BB%E5%A4%A71%2C%E8%AE%BE%E5%8A%A8%E7%82%B9P%E7%9A%84%E8%BD%A8%E8%BF%B9%E4%B8%BA%E6%9B%B2%E7%BA%BFC%2C%E5%B7%B2%E7%9F%A5%E5%8A%A8%E7%9B%B4%E7%BA%BFl%E8%BF%87%E7%82%B9Q%EF%BC%884%2C0%EF%BC%89%E4%BA%A4%E6%9B%B2%E7%BA%BF%E4%BA%8EAB%E4%B8%A4%E7%82%B9%EF%BC%881%EF%BC%89%E8%8B%A5%E7%9B%B4%E7%BA%BFl%E7%9A%84%E6%96%9C%E7%8E%87%E4%B8%BA1%2C%E6%B1%82AB%E7%9A%84%E9%95%BF%EF%BC%882)
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