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Finite and Infinite Set

DEFNITION - A...

Question

DEFNITION - A set which is empty or consists of a different number of element is called a finite set? THIS DEFNITION IS WRITTEN IN NCERT BOOK. WHY WE USE THE WORD EMPTY THEIR?

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Solution

There is a set known as null set, which doesn't have any element. This set is empty, since it is empty, the number of elements inside it is finite which is equal to zero.
The no. of elements is finite(zero) in a null set, it is a finite set

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