Let U(n) = ((n+1)!)/((n+3)!), n in N . I...

Let `U_(n) = ((n+1)!)/((n+3)!), n in N .` If `S_(n) = sum_(n=1) ^(n) U_(n) ` then `"Lim"_(n rarr oo) S_(n)` equals

A

2

B

3

C

`1//2`

D

`1//3`

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The correct Answer is:

D

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