# Copy Of Class 9 Maths Quiz

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| By Sthir Babu
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Sthir Babu
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Quizzes Created: 1 | Total Attempts: 215
Questions: 4 | Attempts: 215

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### What is the complement of the complement of set A?

• A.

A

• B.

U

• C.

U-A

• D.

A'

A. A
Explanation
Good practice.

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• 5.

### Universal set is the set of all the sets under consideration.

• A.

True

• B.

False

A. True
Explanation
The explanation for the given correct answer is that a universal set is defined as the set that contains all the elements or objects of interest in a particular context. It includes all the sets that are being considered in a given situation. Therefore, it can be concluded that the statement "Universal set is the set of all the sets under consideration" is true.

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• 6.

### Well defined collection of the object is called..........................

Set
Explanation
A well-defined collection of objects is called a set. A set is a fundamental concept in mathematics, representing a group of distinct elements. It is characterized by its clarity and precision, as each element in a set is uniquely defined and there is no repetition. Sets are commonly used to classify and organize objects, allowing for efficient analysis and problem-solving.

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• Current Version
• Mar 07, 2023
Quiz Edited by
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• Jun 10, 2020
Quiz Created by
Sthir Babu

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