直线与圆的方程一、已知园 x²+y²+x-6y+m=0 和直线 x+2y-3=0 相交于P、Q两点,O为原点,且OP⊥OQ,求实数m的取值变式1:已知园 x²+y²+x-6y+m=0 和直线 x+2y-3=0 相交于P、Q两点,O为原点,且OP⊥OQ,
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![直线与圆的方程一、已知园 x²+y²+x-6y+m=0 和直线 x+2y-3=0 相交于P、Q两点,O为原点,且OP⊥OQ,求实数m的取值变式1:已知园 x²+y²+x-6y+m=0 和直线 x+2y-3=0 相交于P、Q两点,O为原点,且OP⊥OQ,](/uploads/image/z/1169249-41-9.jpg?t=%E7%9B%B4%E7%BA%BF%E4%B8%8E%E5%9C%86%E7%9A%84%E6%96%B9%E7%A8%8B%E4%B8%80%E3%80%81%E5%B7%B2%E7%9F%A5%E5%9B%AD+x%26%23178%3B%2By%26%23178%3B%2Bx-6y%2Bm%3D0+%E5%92%8C%E7%9B%B4%E7%BA%BF+x%2B2y-3%3D0+%E7%9B%B8%E4%BA%A4%E4%BA%8EP%E3%80%81Q%E4%B8%A4%E7%82%B9%2CO%E4%B8%BA%E5%8E%9F%E7%82%B9%2C%E4%B8%94OP%E2%8A%A5OQ%2C%E6%B1%82%E5%AE%9E%E6%95%B0m%E7%9A%84%E5%8F%96%E5%80%BC%E5%8F%98%E5%BC%8F1%EF%BC%9A%E5%B7%B2%E7%9F%A5%E5%9B%AD+x%26%23178%3B%2By%26%23178%3B%2Bx-6y%2Bm%3D0+%E5%92%8C%E7%9B%B4%E7%BA%BF+x%2B2y-3%3D0+%E7%9B%B8%E4%BA%A4%E4%BA%8EP%E3%80%81Q%E4%B8%A4%E7%82%B9%2CO%E4%B8%BA%E5%8E%9F%E7%82%B9%2C%E4%B8%94OP%E2%8A%A5OQ%2C)
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