圆与方程 (19 16:58:52)已知直线x+2y-3=0与圆x2+y2+x-6y+F=0交于P,Q两点,O为原点.问:F为何值时,OP垂直于OQ?
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![圆与方程 (19 16:58:52)已知直线x+2y-3=0与圆x2+y2+x-6y+F=0交于P,Q两点,O为原点.问:F为何值时,OP垂直于OQ?](/uploads/image/z/4347-27-7.jpg?t=%E5%9C%86%E4%B8%8E%E6%96%B9%E7%A8%8B+%2819+16%3A58%3A52%29%E5%B7%B2%E7%9F%A5%E7%9B%B4%E7%BA%BFx%2B2y-3%3D0%E4%B8%8E%E5%9C%86x2%2By2%2Bx-6y%2BF%3D0%E4%BA%A4%E4%BA%8EP%2CQ%E4%B8%A4%E7%82%B9%2CO%E4%B8%BA%E5%8E%9F%E7%82%B9.%E9%97%AE%EF%BC%9AF%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6%2COP%E5%9E%82%E7%9B%B4%E4%BA%8EOQ%3F)
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