

InterviewSolution
Saved Bookmarks
1. |
If `X={4^n-3n-1 ; n epsilonN}&Y={9(n-1):n epsilonN}` Prove that `XsubY`A. XB. YC. ND. A null set |
Answer» Correct Answer - B Let `X={(4^(n)-3n-1)|n inN}` and `Y={9(n-1)|n inN}` `impliesX={0,9,54,...}("By putting n = 1, 2,....)"` and `Y={0,9,18,27,36,54,....}` (By putting n=1, 2, …) `therefore XuuY={0,9,18,27,36,54,....}=Y` |
|