Q. 74.7( 6 Votes )

Let A = {{1,2,3},

Answer :

(i) False


1 is not an element of A.


(ii) True


{1,2,3} ϵ A. this is correct.


(iii) True.


{6, 7, 8} ϵ A.


(iv) False


2 is not an element of A, and ϕ is also not an element of A. Hence, false.


(v) False


2 alone is not an element of A. Hence, false.


(vi) True


{1, 2, 3} is the set belonging to A. {2, {1}} does not belong to A.


(vii) True


{{2}}, {1}} does not belongs to A. Hence, true.


(viii) False


Φ does not belong to A.


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