Q. 63.7( 9 Votes )

Let A={a,b,{c,d},

Answer :

(i) False


{c,d} is not a subset of A but it belong to A.


{c,d} ϵ A


(ii) True


{c,d} ϵ A


(iii) True


{c,d} is a subset of A.


(iv) It is true that a belong to A.


(v) False


a is not a subset of A but it belongs to A


(vi) True


(vii) False


{a,b,e} A this is the correct form.


(viii) False


{a,b,c} is not a subset of A


(ix) False


ϕ is a subset of A.


ϕ A.


(x) False


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