Introduction to set theory

Set is a collection of objects which have

• Different properties

• Common properties

• Both of them

The union of two or more sets is the set that contains __________ of both or all sets.

• Common elements

• Different elements

• All elements

Name of a set is always written in

• Small letter

• Capital letter

• Both of them

Empty set is also known as

• Null set

• Equivalent Set

• Single set

The set of months of a year is an example of

• Proper set

• Infinite Set

• Finite set

If A= { 1,2,3,5 } and B = { c,d,e,f } both the sets are called

• Singleton set

• Equal set

• Equivalent Set

The symbol of intersection is

• $\cap$

• $\subset$

• $\cup$

If A = { 3,4,5,6} and B={ 4,5,8}, then A  $\cap$ B is

• { 4 , 5 }

• {  $\phi$  }

• { 3,4,5,6,8}

Identify the empty set from the sets given below

• { }

• The set of prime numbers divisible by 3

• { 10 }

Identify the equal set from the sets given below

• A={ 3,5,9,11 } , B= { b,c,d,f }

• A= { a,b,c,d} , B= { e,f,g,h}

• A = { 2,4,6,8} , B ={ 4,8,2,6}