Question

Sets B and G are defined as follows. B=(-2, 2, 3, 5) G=(-1,0,2,4,7) - Answer each part below. Write your answer in roster form or as (a) Find the intersection of B and G. B n G=0 (b) Find the union of Band G. BU G=0 X

Answer 1

B n G = {2}

B u G = {-2, -1 , 0 , 2, 3, 4, 5, 7)

Explanation:

Given the following two sets

B = { -2, 2, 3, 5}

G = { -1, 0, 2, 4, 7}

Part A

Find the intersection of B and G

The intersection of two sets is defined as the set of all the elements in set A that is also present in set G

Hence, the set of elements that is present in set B and set G is 2

Mathematically, B n G = {2}

Part B

Find the union of set B and set G

The union of two sets is a set containing all elements that are in both sets B and G

B u G = {-2, -1 , 0 , 2, 3, 4, 5, 7)