If x= - 3n- 1: n N and Y= 9( n- 1) : n N , where N is the set of natural numbers, then

X Y Explanation: Concept We know that, a set of which all the elements are contained in another set is known as subset Calculations Given, X= - 3n- 1: n N , where N is the set of natural numbers. and Y=\{9(n-1):n\epsilon\text{N}\}, where N is the set of natural numbers, Y Here, all elements of X is contained in set Y. Hence, X is subset of Y. Hence, if x= 4n- 3n- 1: n N and Y 9( n- 1) : n N , where N is the set of natural numbers, then X Y.

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