C-12-Q020mediumsingle_mcqIf c1=c2=0c_1 = c_2 = 0c1=c2=0, the system a1x+b1y=0, a2x+b2y=0a_1 x + b_1 y = 0,\; a_2 x + b_2 y = 0a1x+b1y=0,a is —aalways consistentbalways inconsistentchas no solutiondnone of these