过抛物线y=x^2上一点P(x0,y0)作两条倾斜角互补的直线,分别交抛物线于分别交抛物线于A(x1,y1)B(x2,y2)1,求证(x1+x2)/x0是定值 2,证明直线AB的斜率是定值
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![过抛物线y=x^2上一点P(x0,y0)作两条倾斜角互补的直线,分别交抛物线于分别交抛物线于A(x1,y1)B(x2,y2)1,求证(x1+x2)/x0是定值 2,证明直线AB的斜率是定值](/uploads/image/z/15251225-41-5.jpg?t=%E8%BF%87%E6%8A%9B%E7%89%A9%E7%BA%BFy%3Dx%5E2%E4%B8%8A%E4%B8%80%E7%82%B9P%28x0%2Cy0%29%E4%BD%9C%E4%B8%A4%E6%9D%A1%E5%80%BE%E6%96%9C%E8%A7%92%E4%BA%92%E8%A1%A5%E7%9A%84%E7%9B%B4%E7%BA%BF%2C%E5%88%86%E5%88%AB%E4%BA%A4%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%8E%E5%88%86%E5%88%AB%E4%BA%A4%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%8EA%28x1%2Cy1%29B%28x2%2Cy2%291%2C%E6%B1%82%E8%AF%81%EF%BC%88x1%2Bx2%EF%BC%89%2Fx0%E6%98%AF%E5%AE%9A%E5%80%BC+++2%2C%E8%AF%81%E6%98%8E%E7%9B%B4%E7%BA%BFAB%E7%9A%84%E6%96%9C%E7%8E%87%E6%98%AF%E5%AE%9A%E5%80%BC)
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