Question

write some sets A and B such that A and B are disjoint ​

Answer 1

Step-by-step explanation:

Let A= {1,2,3,4} and B= { 5,6,7,8}

A-B = {1,2,3,4} - {5,6,7,8}

= { 1,2,3,4}

B-A = {5,6,7,8} - {1,2,3,4}

= {5,6,7,8}

:. A-B and B-A are disjoint sets

Answer 2

Concept:

Disjoint sets. are those pair of sets which does not have any common element in them.

 

Given:

We have,

sets A and B

Find:

We are asked to find the Disjoint sets.

Solution:

We have,

Let,

A = {9, 8, 7, 6}

And,

B = {1, 2, 3, 4}

Now,

Find the sets of (A - B),

i.e.

A - B = {9, 8, 7, 6} - {1, 2, 3, 4}

We get,

A - B =  {9, 8, 7, 6}

Now,

Find the sets of (B - A),

i.e.

B - A = {1, 2, 3, 4} - {9, 8, 7, 6}

We get,

B - A = {1, 2, 3, 4}

So,

A and B are disjoint sets.

Hence, the sets A and B are disjoint sets.

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