Q. 83.9( 7 Votes )

Let A = {ϕ,

Answer :

(i) True


Φ is a member of set A. Hence, true.


(ii) True


{ Φ} is a member of set A. Hence, true.


(iii) False


1 alone is not a member of A. Hence, false.


(iv) False


We can see that 2 is a member of set A, {2, Φ} is not. Hence, false


(v) True


2 is a member of set A. Hence, true.


(vi) True


{1} is not a member of set A.


(vii) True


Neither {2} and nor {1} is a member of set A. Hence, true.


(viii) True


All three are members of set A. Hence, true.


(ix) False


{{ϕ}} is not a member of set A. Hence, false.


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