Q. The associative law of union is (Solved)
1. a u (b u c) = (a u b) u c = a u b u c
2. a u b = b u a
3. a u b = a u c
4. b u c = b u a
- a. a u (b u c) = (a u b) u c = a u b u c
1. a u (b u c) = (a u b) u c = a u b u c
2. a u b = b u a
3. a u b = a u c
4. b u c = b u a