urgent solution needed

a) Consider the following relation R1 and set of functional dependencies F1 R={A,B,C,D,E,I}F={AC,ABC,CDI,CDI,ECAB,EIC} i) Determine all the candidate keys for the relation R. ii) Find the attribute closure for (ACD) and (BCI) for the relation R. iii) Find the maximum normalized form (NF) of relation R b) Consider the following relation R2 and set of functional dependencies F2 R={A,B,C,D,E,F,G,H,I,J} F={ABC,ADGH,BDEF,AI,HJ,IBD} i) Check whether AC and IG are valid functional dependencies or not. ii) Check if G is a prime attribute or not