Let U be the universal set,
let A = {a, b, c, d},
let B = {b, d, e, f, i},
let C = {a, e, i, o, u}, and
let D = {c, g}.

Determine the following sets:

1. A  B
   
   
   
2. B  C
   
   
   
3. A - D
   
   
   
4. B  D
   
   
   
5. A  D
   
   
   
6. A^c relative to B  C