你解答过的一道双曲线题已知双曲线G的中心在原点,它的渐近线与圆x2+y2-10x+20=0相切.过点P(-4,0)作斜率为 14的直线l,使得l和G交于A,B两点,和y轴交于点C,并且点P在线段AB上,又满足|PA|•|PB|=
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![你解答过的一道双曲线题已知双曲线G的中心在原点,它的渐近线与圆x2+y2-10x+20=0相切.过点P(-4,0)作斜率为 14的直线l,使得l和G交于A,B两点,和y轴交于点C,并且点P在线段AB上,又满足|PA|•|PB|=](/uploads/image/z/10910093-5-3.jpg?t=%E4%BD%A0%E8%A7%A3%E7%AD%94%E8%BF%87%E7%9A%84%E4%B8%80%E9%81%93%E5%8F%8C%E6%9B%B2%E7%BA%BF%E9%A2%98%E5%B7%B2%E7%9F%A5%E5%8F%8C%E6%9B%B2%E7%BA%BFG%E7%9A%84%E4%B8%AD%E5%BF%83%E5%9C%A8%E5%8E%9F%E7%82%B9%2C%E5%AE%83%E7%9A%84%E6%B8%90%E8%BF%91%E7%BA%BF%E4%B8%8E%E5%9C%86x2%2By2-10x%2B20%3D0%E7%9B%B8%E5%88%87%EF%BC%8E%E8%BF%87%E7%82%B9P%EF%BC%88-4%2C0%EF%BC%89%E4%BD%9C%E6%96%9C%E7%8E%87%E4%B8%BA+14%E7%9A%84%E7%9B%B4%E7%BA%BFl%2C%E4%BD%BF%E5%BE%97l%E5%92%8CG%E4%BA%A4%E4%BA%8EA%2CB%E4%B8%A4%E7%82%B9%2C%E5%92%8Cy%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%2C%E5%B9%B6%E4%B8%94%E7%82%B9P%E5%9C%A8%E7%BA%BF%E6%AE%B5AB%E4%B8%8A%2C%E5%8F%88%E6%BB%A1%E8%B6%B3%7CPA%7C%26%238226%3B%7CPB%7C%3D)
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