Functional dependency non-trivial, keys, 2NF,3NF need help solving questions 11 thru 15

Suppose R: (A, B, C, D, E, F, G, ) is a relation Answer Exercises 10-!6 based on the functional dependencies given in each queson 11. Suppose is the key of R, and A {C, D) and B F, H). a. List the full, maximal, nontrivial functional dependencies of R. b. Which dependencies represent 2NF violations? c. Eliminate the 2NF violations by decomposition. d. Which dependencies represent 3NF violations? e. Eliminate the 3NF violations. 12. Suppose A ta, c, D, F, G, B {C, D), and E (, HI. a. Which sets of attributes are the keys of R? b. Identify and eliminate any 2NF violations. c. Identify and eliminate any 3NF violations. 13. Suppose ta, e)(c, D, E, F, G, E), C (a, E, F), and C E. a. Which sets of attributes are the keys of R? b. Identify and eliminate any 2NF violations. c. Identify and eliminate any 3NF violations. Suppose ta, [C, D, E, F, G, H} and C [A, E, E,F) a. Which sets of attributes are the keys of ? b. Identify and eliminate any 2NF violations. c. Identify and eliminate any 3NF violations 14. is. Suppose A+, c, DlIA E-(G, H, E r, and F E. a. Which sets of attributes are the keys of R b. Identity and eliminate any 2NF violations. c. Identify and eliminate any 3NF violadions