Question

If A=(2,4,6,8)and B=(3,6,9,12,15) find A-B and B-A







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Answer 1

Answer:

A-B =  {2,4,8}

B-A = {3,9,12,15}

Step-by-step explanation:

given,

A={2,4,6,8}

B={3,6,9,12,15}

=> A-B = {2,4,6,8} - {3,6,9,12,15}

           = {2,4,8}

also, B-A = {3,6,9,12,15}- {2,4,6,8}

               = {3,9,12,15}

Answer 2

Given:

A=(2,4,6,8)

B=(3,6,9,12,15)

To find:

i. A-B

ii. B-A

Solution:

The value of A-B is (2, 4, 8) and B-A is (3, 9, 12, 15).

We can find the values by following the given steps-

We know that the difference between two sets can be obtained by eliminating the common terms in both sets.

So, the value of A-B will be those values of set A which are not in B.

Similarly, the value of B-A will be those values of set B which are not in set A.

We are given that A=(2,4,6,8) and B=(3,6,9,12,15).

i. A-B=(2,4,6,8)-(3,6,9,12,15)

We will eliminate the terms common in A and B.

The common term is 6.

So, A-B=(2, 4, 8)

ii. B-A=(3,6,9,12,15)-(2,4,6,8)

We will eliminate the terms common in B and A.

The common term is 6.

So, B-A=(3, 9, 12, 15)

Therefore, the value of A-B is (2, 4, 8) and B-A is (3, 9, 12, 15).