设二圆分别为○C1,○C2易知○C1:(x-2)²+(y+3)²=13,○C2:(x-3)²+y²=0∴C1(2,-3),C2(3,0)由○C1,○C2相交于点A,B易知C1A=C1B,C2A=C2B∴C1在AB垂直平分线上,C2在AB垂直平分线上∴C1C2即AB垂直平分...