Chapter 1 (SETS)

A set is a collection of well define and:

• same objects

• distinct objects

• Both

• None

A set described with the help of a statement is called:

• Set builder form

• Tabular form

• Descriptive form

• All of them

Listing all the elements of a set, separated by commas and enclosed within braces or curly brackets is called:

• Set builder form

• Tabular form

• Descriptive form

• All of them

A set where elements possess certain property or properties is called:

• Set builder form

• Tabular form

• Descriptive form

• All of them

Null set is denoted by:

• { }

• Ø

• Both { } and Ø

• { Ø }

The set A = { 1,3,5,7,……} is closed with respect to :

• Addition

• Multiplication

• Subtraction

• Division

The set of first three composite numbers is:

• {0,1,2}

• {1,2,3}

• {2,3,5}

• {4,6,8}

The set of first three natural numbers is:

• {0,1,2}

• {1,2,3}

• {2,3,5}

• {4,6,8}

The set of first three prime numbers is:

• {0,1,2}

• {1,2,3}

• {2,3,5}

• {4,6,8}

The set of first three whole numbers is:

• {0,1,2}

• {1,2,3}

• {2,3,5}

• {4,6,8}