Solve 8 sum

Solve 8 sum 7. If R is a relation from a set A to set B, then (1) RcB*A (2) RcA*B (4) A x BcR 8. If A = {2, 4, 6}, then domain of the relation R = {(a, b) : a, b A, lal — Ibl is even number} defined on A is (2) {4,6} 94,