Question

if A={1, 2,3,4}, B={3, 4,5,6}, C={4, 5,6,7,8} then verify A=(A intersection B) union(A intersection B')​

Answer 1

(AnB) U(AnB')

AnB = { 3 , 4 }

AnB'= A - B = p( A) - P(AnB)

AnB' = { 1, 2, 3 , 4} - { 3 , 4}

AnB' = { 1 , 2 }

(AnB) U ( AnB') = { 1,2,3,4}

A. = { 1, 2,3,4 }

please mark my answer as brain list