Question

Find the union of the following pair of sets: = { | = 3, ∈ , ≤ 5} = { | = 2 + 1, ∈ , ≤ 4}​

Answer 1

Answer:

A = {x:x is a natural number and 1<x≤6} = {2,3,4,5,6}

B = {x:x is a natural number and 6<x<10} = {7,8,9}

A∪B = {2,3,4,5,6,7,8,9}

∴, A∪B = {x:x∈N and 1<x<10}.