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在圆锥曲线中,对抛物线的研究不同于椭圆和双曲线。在抛物线的几何性质中,需重点突破的是抛物线的焦半径与焦点弦.下面我以抛物线y2=2px(p>0)为例,总结有关抛物线的焦半径与焦点弦
In conic curves, the study of parabolas differs from ellipses and hyperbolic curves. In the geometry of the parabola, the focus of the parabola to be focused on is the focal radius of the parabola and the focus chord. Let us take the parabola y2 = 2px (p> 0) as an example to summarize the relationship between the focal radius of the parabola and the focus chord