已知直线l过抛物线y²=2px的焦点,且与抛物线交于两点p1.p2设p1(x1.y1)p2(x2.y2)求证y1y2=-p².来个真会的会追问
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![已知直线l过抛物线y²=2px的焦点,且与抛物线交于两点p1.p2设p1(x1.y1)p2(x2.y2)求证y1y2=-p².来个真会的会追问](/uploads/image/z/4970148-60-8.jpg?t=%E5%B7%B2%E7%9F%A5%E7%9B%B4%E7%BA%BFl%E8%BF%87%E6%8A%9B%E7%89%A9%E7%BA%BFy%26%23178%3B%EF%BC%9D2px%E7%9A%84%E7%84%A6%E7%82%B9%2C%E4%B8%94%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%A4%E4%BA%8E%E4%B8%A4%E7%82%B9p1.p2%E8%AE%BEp1%EF%BC%88x1.y1%EF%BC%89p2%EF%BC%88x2.y2%EF%BC%89%E6%B1%82%E8%AF%81y1y2%EF%BC%9D-p%26%23178%3B.%E6%9D%A5%E4%B8%AA%E7%9C%9F%E4%BC%9A%E7%9A%84%E4%BC%9A%E8%BF%BD%E9%97%AE)
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已知直线l过抛物线y²=2px的焦点,且与抛物线交于两点p1.p2设p1(x1.y1)p2(x2.y2)求证y1y2=-p².来个真会的会追问
已知直线l过抛物线y²=2px的焦点,且与抛物线交于两点p1.p2设p1(x1.y1)p2(x2.y2)求证y1y2=-p².来个真会的会追问
已知直线l过抛物线y²=2px的焦点,且与抛物线交于两点p1.p2设p1(x1.y1)p2(x2.y2)求证y1y2=-p².来个真会的会追问