Question

U = { 1, 3, 5, 8, 9, 10, 11, 12, 13} and D = { 5, 8, 9, 10, 11, 13 } Verify ( D')' = D

Answer 1

Answer:

Lhs:

(D')

D' =u-D

D'={1,3,5,8,9,10,11,12,13}-{5,8,9,10,11,13}

D'={1,3,12} --------1 eqn

(D')'=D' - D

{1,3,12} - {5,8,9,10,11,13}

={5,8,9,10,11,13}-------2eqn

whereas lhs ( {5,8,9,10,11,13}=rhs({5,8,9,10,11,13})

LHS = RHS

● hence, Verified.