1번(x+1)^+(y-3)^=2,2번x^+y^=1/4,4번(x=3)^+(y-1)^=1,4번(x+3)^+(y-1)^=9,5번(1)(-1,4),3(2)(0,2),2,6번k<5,7번x^+y^-(8/3)*x+1/3=0,8번y=-1/2,유제1번4,유제2
당신은 어느 그룹입니까?