Answer :
Answer:
= {1,7}
Step-by-step explanation:
1 is in B
2 is in B but is also in A so we take that away
3 is in B but is also in A so we take that away
7 is in B
Answer:
= {1,7}
Step-by-step explanation:
1 is in B
2 is in B but is also in A so we take that away
3 is in B but is also in A so we take that away
7 is in B