已知圆C过点P(1,1),且与圆M(x+2)^2+(y+2)^2=r^2 (r>0)关于直线x+y+2=0对称2)设Q为圆c上的一个动点,求向量PQ*向量MQ的最小值.
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![已知圆C过点P(1,1),且与圆M(x+2)^2+(y+2)^2=r^2 (r>0)关于直线x+y+2=0对称2)设Q为圆c上的一个动点,求向量PQ*向量MQ的最小值.](/uploads/image/z/6930742-22-2.jpg?t=%E5%B7%B2%E7%9F%A5%E5%9C%86C%E8%BF%87%E7%82%B9P%281%2C1%29%2C%E4%B8%94%E4%B8%8E%E5%9C%86M%28x%2B2%29%5E2%2B%28y%2B2%29%5E2%3Dr%5E2+%28r%3E0%29%E5%85%B3%E4%BA%8E%E7%9B%B4%E7%BA%BFx%2By%2B2%3D0%E5%AF%B9%E7%A7%B02%EF%BC%89%E8%AE%BEQ%E4%B8%BA%E5%9C%86c%E4%B8%8A%E7%9A%84%E4%B8%80%E4%B8%AA%E5%8A%A8%E7%82%B9%2C%E6%B1%82%E5%90%91%E9%87%8FPQ%2A%E5%90%91%E9%87%8FMQ%E7%9A%84%E6%9C%80%E5%B0%8F%E5%80%BC.)
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