Question

Need help solving this

Answer 1

Answer:

A^C = {2,3,5,6,10,12,14,15,17,18,20}

B^C = {1,3,5,6,9,11,15,16,18,20}

C^C = { 5,9,10,15,16,20}

Step-by-step explanation:

The C means the complement or the items  in the main set and not in the subset

Given U = {1,2,3,4,5,......18,19,20}

A^C = means the items in U that are not in A

A^C = {2,3,5,6,10,12,14,15,17,18,20}

B^C = means the items in U that are not in B

B^C = {1,3,5,6,9,11,15,16,18,20}

C^C = means the items in U that are not in C

C^C = { 5,9,10,15,16,20}