Question

A={1,2,3,4,6,8,12,24,48 B= { 1,2,3,4,6,8,12,24} find AUB,A intersection B,A-B,B-A what is relation between set AandB
please tell the detailed answer please​

Answer 1

Question

A={1,2,3,4,6,8,12,24,48 B= { 1,2,3,4,6,8,12,24} find AUB,A intersection B,A-B,B-A what is relation between set A and B.

Given

• A = { 1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 , 48 }
• B = { 1 , 2 , 3 , 4 , 6 , 8 , 12 , 24 }

Solution

As

A = { 1, 2 , 3 , 4 , 6 , 12 , 24 , 48 } and B = { 1, 2 , 3 , 4 , 6 , 8 , 12 , 24 }

the elements in the set B are all in the set A

So we can say that B subset A

$\sf \: <strong><u>More</u></strong>$

Types of set

singleton set

a set Consisting of a single element is called a singleton set.

Example - A = { 2 }

A is the set of even prime numbers.

Empty set or Null set

If there is not a single element in the set which statisfies the given condition then it is called a Null set or an empty set. Null set is represented by { } .

Example -

B = { x | x is natural number between 2 and 3. }

Finite set

If a set is a null set or number of elements are limited and countable then it is called as ' Finite set '.

Example -

C = { p | p is a number from 1 to 22 divisible by 4 .}

C = { 4, 8, 12, 16, 20 }

Infinite set

If a number of elements in a set is unlimited and uncountable then it is called as ' Infinite set '

Example -

N = { 1 , 2 , 3 ... }