Question

write the set A={x:x is an odd natural number less than 10}in roster form

Answer 1

Step-by-step explanation:

the elements of set is A={1,3,5,7,9}

A=1,3,5,7,9

Answer 2

A = { 1 , 3 , 5 , 7 , 9 } is the roster form of A = { x : x is an odd natural number less than 10 }

Given :

The set A = { x : x is an odd natural number less than 10 }

To find :

Express A in the roster form

Concept :

Set :

A set is a well defined collection of distinct objects of our perception or of our thought to be conceived as a whole

Representation of Set

A set can be represented in following ways

(i) Statement form method

(ii) Roster or tabular form method

(iii) Rule or set builder form method

Solution :

Step 1 of 2 :

Write down the given set

Here the given set is

A = { x : x is an odd natural number less than 10 }

Step 2 of 2 :

Express A in the roster form

The odd natural numbers less than 10 are 1 , 3 , 5 , 7 , 9

Hence the required roster form of A is given by

A = { 1 , 3 , 5 , 7 , 9 }

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