For a set S C {0,1} {0, 1}, let os be a Boolean operation defined as follows: 1 if (21, x2) E S; 0 otherwise. X1 For example, the OR operator V can be expressed as of(0,1),(1,0),(1,1)}. Answer the following questions. (3) Let os be a Boolean operation, let x1 and x2 be variables, and let denote the NOT operator. For each of the following equations, express the set T in terms of the set S, and justify your answer. (a) x1 oT x2 X2. (b) 2 , X2