Question

Which of the following are well defined sets?
1. The set of all the days in a week brginning with the letter "T"
2. The set of good writers
3. The set of girls in your class
4. The set of all months in a year
5. The set of all active teachers in the school

Answer 1

$★★★★★★★★★$

Answer 2

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TO DETERMINE

The well defined sets from below sets

• 1. The set of all the days in a week beginning with the letter "T"

• 2. The set of good writers

• 3. The set of girls in your class

• 4. The set of all months in a year

• 5. The set of all active teachers in the school

CONCEPT TO BE IMPLEMENTED

SET : A set is a well defined collection of distinct objects

A set is well defined meaning that if S be a set and x be an object then x is definitely in S or x is not definitely not in S

EVALUATION

1. The set of all the days in a week beginning with the letter "T"

This is a well defined set as the days in a week beginning with the letter "T" are Tuesday, Thursday

2. The set of good writers

This is not a well defined set

3. The set of girls in your class

This is a well defined set

4. The set of all months in a year

This is a well defined set

5. The set of all active teachers in the school

This is not a well defined set

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LEARN MORE FROM BRAINLY

If A, B and C are any three sets then prove the following using venn-diagram.

A∩(BUC) = (A∩B) U (A∩C)

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