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QUESTION 2 Consider a relation R defined on the set A = {-5, -4, -3, -2, -1,0, 1, 2, 3, 4, 5). Determine for each of the following definitions of R if it is a partial order or an equivalence relation. (you need to justify your answers) (a) R = {(a, b)|a sb}, if this is a partial order, draw the Hasse diagram. (b) R = {(a, b)| a3 = 63 }, if this is a partial order, draw the Hasse diagram. (C) R = {(a, b)|ab s0}, if this is a partial order, draw the Hasse diagram