Question

If A= { 6,7,8,9 } and B= { 8,10,12 } , find A ∆ B

Answer 1

Answer:

@a=6: 6(4)=24

@a=7: 7(4)=28

@a=8: 8(4)=32

@a=9: 9(4)=36

if you mean delta A x delta B

3(4)=12