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If X""=""{4^n-3n-1"":""n in N}""a n d""...

If `X""=""{4^n-3n-1"":""n in N}""a n d""Y""=""{9(n-1)"": n in N}` , where N is the set of natural numbers, then `XuuY` is equal to (1) N (2) Y - X (3) X (4) Y

A

N

B

Y - X

C

X

D

Y

Text Solution

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The correct Answer is:
D
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Knowledge Check

  • If X={4^n-3n-1: ninN} and Y={9(n-1):ninN} , where N is the set of natural numbers, then X cup Y is equal to

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    D
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