lim help

what is the lim((n+4)/(n+1))^n when it tend to infinity
help

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  1. you know that

    lim (1 + 1/n)^n = e
    In fact,
    lim (1 + 1/(n+k))^n = e

    (n+4)/(n+1) = 1 + 3/(n+1)

    so, lim (1 + 3/(n+1)) = e^3

    see whether you can justify that

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