Question

Let all the students of a class is an Universal set. Let set A be the students who secure 50% or more marks in Maths. Then write the complement of set A.

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Answer 1

Answer:

Answer:

A' = {All the students in the class obtained less than 50 percent marks}

Step-by-step explanation:

Given that

All students of a class represent a universal set. Therefore, this condition can be translated into maths as

U = {All students of the class}

A set represent the set of those students who secured 50% or more marks in maths. This statment can be translated into maths as follows

A = {Students who obtained 50% or more marks in maths}

Now we have to find the complement of A. The complement of A is represented by A' and it can be calculated as

A' = U - A

A' = {All the students in the class obtained less than 50 percent marks}

This is our desired answer.

Step-by-step explanation:

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Answer 2

Answer:

All the students of a class is a Universal set i.e.

U = set of all the students of a class and

A = set of the students who secure 50% or more marks in Maths

So, the complement of set A,A^ prime =U-A=set of the students who secure less than 50% marks in Maths.

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