Question

let U = (1 2 3 4 5) and A = (2 3 4) find a (complement of a)​

Answer 1

Step-by-step explanation:

A' = U - A

(1,2,3,4,5) - (2,3,4)

(1,5)

Answer 2

Answer:

U = {1,2,3,4,5,6}

A = {2,3}

B = {3,4,5}

A∪B={2,3} ∪ {3,4,5} = {2,3,4,5}

Therefore, (A∪B) ′ = {1,6}

Also, A ′ = {1,4,5,6}

B ′ = {1,2,6}

Therefore, A ' ∩B ′= {1,4,5,6} ∩ {1,2,6} = {1,6}

Hence, (A∪B) ′ =A ′ ∩B ′ .