已知过点p(0,2)的直线l与抛物线y∧2=4x交于a,b两点,o为坐标原点.①若以ab为直径的园经过原点o求直线l的方程.②若线段ab的中垂线交x轴于点q求三角形poq面积的取值范围;
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![已知过点p(0,2)的直线l与抛物线y∧2=4x交于a,b两点,o为坐标原点.①若以ab为直径的园经过原点o求直线l的方程.②若线段ab的中垂线交x轴于点q求三角形poq面积的取值范围;](/uploads/image/z/6973309-37-9.jpg?t=%E5%B7%B2%E7%9F%A5%E8%BF%87%E7%82%B9p%EF%BC%880%2C2%EF%BC%89%E7%9A%84%E7%9B%B4%E7%BA%BFl%E4%B8%8E%E6%8A%9B%E7%89%A9%E7%BA%BFy%E2%88%A72%3D4x%E4%BA%A4%E4%BA%8Ea%2Cb%E4%B8%A4%E7%82%B9%2Co%E4%B8%BA%E5%9D%90%E6%A0%87%E5%8E%9F%E7%82%B9.%E2%91%A0%E8%8B%A5%E4%BB%A5ab%E4%B8%BA%E7%9B%B4%E5%BE%84%E7%9A%84%E5%9B%AD%E7%BB%8F%E8%BF%87%E5%8E%9F%E7%82%B9o%E6%B1%82%E7%9B%B4%E7%BA%BFl%E7%9A%84%E6%96%B9%E7%A8%8B.%E2%91%A1%E8%8B%A5%E7%BA%BF%E6%AE%B5ab%E7%9A%84%E4%B8%AD%E5%9E%82%E7%BA%BF%E4%BA%A4x%E8%BD%B4%E4%BA%8E%E7%82%B9q%E6%B1%82%E4%B8%89%E8%A7%92%E5%BD%A2poq%E9%9D%A2%E7%A7%AF%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%EF%BC%9B)
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