Question

give mi ans
4 .??????



..
plz
fast ..​

Answer 1

Answer:

(1) {(1,5),(1,6),(2,5),(2,6),(3,5),(3,6),(4,5),(4,6)}

(2) {(1,5),(1,6),(2,5),(2,6),(3,5),(3,6),(4,5),(4,6)}

(3) {(1,5),(1,6),(2,5),(2,6),(3,5),(3,6),(4,5),(4,6),(1,4),(2,4),(3,4),(4,4)}

(4) {(1,5),(1,6),(2,5),(2,6),(3,5),(3,6),(4,5),(4,6),(1,4),(2,4),(3,4),(4,4)}