Let P, Q, and R be statements. Determine whether or not the two expressions in each pair are logically equivalent. In each case, demonstrate that your answer is correct. () ( Q) %3D R, (b) (P V Q) = R, (c) (P A Q) = R, (d) P= (Q V R), (e) P= (Q ^ R), P = (Q = R). (P= R) V (Q R). P = R) ^ (Q R). (P= Q) v (P= R). (P= Q) ^ (P R).