Question
Mon January 07, 2013 By: Shivam Arora

If X={4^n-3^n-1:n elementof N}andY={9(n-1):n element of N}, prove that X is a subset of Y

Expert Reply
Mon January 07, 2013
to prove first write each set in roaster form
 X={0,6,36,164,..........}
 Y={0,9,18,27,36,45,.........}as
both sets are having elements which are not in other set so neither of two is subset of other
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