Question:

Simplify the expressions?

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[ n(n!)] / [(n+1)!

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  1. n / (n+1)

    It is really:

    [1*2**3*4.... (n-1)(n)(n)] /  [1*2**3*4.... (n-1)(n)(n+1)]

    The "1*2**3*4.... (n-1)(n)" cancel out and are left with n / (n+1)

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