lim(n->oo)(n(2n+1)^2)/((n+2)(n^2+3n-1)) ...

`lim_(n->oo)(n(2n+1)^2)/((n+2)(n^2+3n-1)) ` is equal to

(a)0

(b) 2

(c) 4

(d) `oo`

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