C-02-Q125mediumsingle_mcqFor R={(x,y):x∈A,y∈A,x+y=1}R = \{(x, y) : x \in A, y \in A, x + y = 1\}R={(x,y):x∈A,y∈A,x+y=1} with A={−2,−1,0,1,2}A = \{-2, -1, 0, 1, 2\}A={−2,−1,0,1,2}, R=R =R=a{(−1,2),(0,1),(1,0),(2,−1)}\{(-1, 2), (0, 1), (1, 0), (2, -1)\}{(−1,2),(0,1),(1,0),(2,−1)}