... cout<<" ;-- -- - -- - -- - -- - -- - -\ n";cout<<" ;-- -- - -- - -- - -- - -- - -\ n"; p.cong(p1,p2);p.cong(p1,p2); p1.show();p1.show(); cout<<" + "; cout<<" ... cong(sophuc p1,sophuc p2);void cong(sophuc p1,sophuc p2);};}; 1010void sophuc:: cong(sophuc p1,sophuc p2)void sophuc:: cong(sophuc p1,sophuc p2){{thuc=p1.thuc+p2.thuc;thuc=p1.thuc+p2.thuc;ao=p1.ao+p2.ao;ao=p1.ao+p2.ao;}}void ... sophuc p1(2,3),p2(6,4),p;sophuc p1(2,3),p2(6,4),p; p.show();p.show(); cout<<"\nCong hai so phuc\n";cout<<"\nCong hai so phuc\n"; cout<<" ;-- -- - -- - -- - -- - -- - -\ n";cout<<" ;-- -- - -- - -- - -- - -- - -\ n";...