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由直線和圓相交的性質可得,圓心在點O(0,0)和點P(1,1)的中垂線x+y-1=0上,再根據圓心在直線2x+3y+1=0上,可得圓心C的座標為(4,-3),故半徑r=|OC|=5,故所求的圓的方程為(x-4)2+(y+3)2= 25.
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