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If lim(x->oo)(x^2+3x+5)/(4x+1+x^k) exist...

If `lim_(x->oo)(x^2+3x+5)/(4x+1+x^k)` exists then K (a)`k =2` (b) `k<2` (c) `k >2` (d) `k >=2`

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