a. R1 = {(0,1),(0,0),(0,3),(1,1),(1,0),(2,3),(3,3)} b. R2 = {(0,0),(0,1)

a. R1 = {(0,1),(0,0),(0,3),(1,1),(1,0),(2,3),(3,3)} b. R2 = {(0,0),(0,1)