4. Let U = {1,2,..., 10), A = (3,5,6,8,10), B = {1,2,4,5,8,9},
C = {1,2,3,4,5,6,8) and D= {2,3,5,7,8,9). Verify each of the following.
a. (AUB) UCAU (BUC).
b. An (BUCUD) = (ANB) U (ANC)U(AND).
c. (AnBnGnD)'= AUBUCUD d. C-D COD:
e. An (BNC)' (A-B) U (A-C).
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