Question

(7) 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:

All the students of a class is a universal seti.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'=U-A=set of the students who secure less than 50% mark in maths.