Copy Of Class 9 Maths Quiz

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

True

False

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.

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.

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

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.

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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3. What is the complement of the complement of set A?

A

U

U-A

A'

Good practice.

Explanation

Good practice.