1. If F = {AB C, C B, C A}, then derive all the possible FDs. 2. For a relation R(A,B,C,D,E,F,G), FD={AB, BC=DE, AEFG}, show ACFDG 3. F={ABC, A=D, D+E, AC+B}, then, do following FDs hold? a) ABE b) D=0