ICSE Class 7 Answered
Let U = {1, 2, 3, 4}, A = {1, 2}, B = {1,3} and C = {1, 4}.
(i) Find A' B and A B'
(ii) Prove ( A B )' = A' B'
Asked by Topperlearning User | 04 Jun, 2014, 01:23: PM
Expert Answer
Its given that,
U = {1, 2, 3, 4}, A = {1, 2}, B = {1,3} and C = {1, 4}
(i) A' = {3, 4}
Hence, A' B = {3}
B' = {2. 4}
Hence, A B' = {1, 2, 4}
(ii) A B = {1, 2, 3}
Hence, (A B)' = {4}
A' B' = {4}
Hence, ( A B )' = A' B'
Answered by | 04 Jun, 2014, 03:23: PM