(a) State in words the meaning of ₁(p, X)=2(q, X). (b) Assuming that N₁ and N₂ are identical circuits with the following state graph, use Definition 15.1 to show that p is not equivalent to q. (Calculate (p. X) and (q, X) for X= 0, X= 1, X = 00, X= 01, etc.) % 9