Q. 14.4( 13 Votes )

Which of the foll

Answer :

(i) False


No, it is not necessary for any two set A and B to be either A B or B A.


Let A = {1,2} and B ={a,b}


Here neither A B nor B A.


(ii) False


A = {1,2,3} It is subset of infinite set N and is finite.


(iii) True


Even if we think logically then also smaller part of something finite can never be infinite.


(iv) False


Null set or empty set does not have a proper subset.


(v) False


We do not repeat elements in a set, so the given set becomes {a,b} which is a finite set.


(vi) True


In both of the number of the set of elements are same.


(vii) False


In A = {1}


The subsets are ϕ and {1} which are finite.


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