1.判断题x^2+y^2+6x-7=0与抛物线y^2=4x的准线的位置关系2.抛物线y^2=2px(p>0),直线l的倾斜角为π/3,且过抛物线焦点,并与抛物线交与A,B两点,若S△AOB=4根号3.求抛物线方程3.一直点A(2,8)B(x1,y1)C(x2,y2)
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![1.判断题x^2+y^2+6x-7=0与抛物线y^2=4x的准线的位置关系2.抛物线y^2=2px(p>0),直线l的倾斜角为π/3,且过抛物线焦点,并与抛物线交与A,B两点,若S△AOB=4根号3.求抛物线方程3.一直点A(2,8)B(x1,y1)C(x2,y2)](/uploads/image/z/14799408-24-8.jpg?t=1.%E5%88%A4%E6%96%AD%E9%A2%98x%5E2%2By%5E2%2B6x-7%3D0%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BFy%5E2%3D4x%E7%9A%84%E5%87%86%E7%BA%BF%E7%9A%84%E4%BD%8D%E7%BD%AE%E5%85%B3%E7%B3%BB2.%E6%8A%9B%E7%89%A9%E7%BA%BFy%5E2%3D2px%28p%3E0%29%2C%E7%9B%B4%E7%BA%BFl%E7%9A%84%E5%80%BE%E6%96%9C%E8%A7%92%E4%B8%BA%CF%80%2F3%2C%E4%B8%94%E8%BF%87%E6%8A%9B%E7%89%A9%E7%BA%BF%E7%84%A6%E7%82%B9%2C%E5%B9%B6%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BF%E4%BA%A4%E4%B8%8EA%2CB%E4%B8%A4%E7%82%B9%2C%E8%8B%A5S%E2%96%B3AOB%3D4%E6%A0%B9%E5%8F%B73.%E6%B1%82%E6%8A%9B%E7%89%A9%E7%BA%BF%E6%96%B9%E7%A8%8B3.%E4%B8%80%E7%9B%B4%E7%82%B9A%EF%BC%882%2C8%EF%BC%89B%EF%BC%88x1%2Cy1%EF%BC%89C%28x2%2Cy2%29)
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