If →P=→Q then which of the following is NOT correct
^P+^Q
|→P|+|→Q|
P^Q=Q^P
→P+→Q=^P+^Q
→P+→Q=P^P+Q^Q.
If P = {4, 5, 6, 7, 8, 9}, Q = {2, 3, 4}, R = {4, 5, 8} then which of the following statements are correct ?