1.

If X = { (2^n)-1:n belongs to N}and Y= { 7n:n belongs to N}, then(A) X=Y(B) X is subset of Y(C) Y is subset of X(D) none of these

Answer» If X = { (2^n)-1:n belongs to N}
and Y= { 7n:n belongs to N}, then
(A) X=Y
(B) X is subset of Y
(C) Y is subset of X
(D) none of these


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