6) Let R(A, B, C, D, E, P, G) be a relational schema in which the following functional dependencies are known to hold:
AB —> CD,
DE —> P,
C --> E,
P --> C and B —> G .
The relational schema R is

7) Consider the following set of functional dependencies on the schema (A, B, C)
A --> BC,
B —> C,
A —> B,
AB —> C
The canonical cover for this set is

9) Which normal form is considered adequate for relational database design

10) A functional dependency of the form x —> y is trival if

11) If every non-key attribute is functionally dependent primary key, then the relation will be in