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find-the-nature-of-U-n-p-0-p-n-1-C-n-p-




Question Number 26768 by abdo imad last updated on 29/Dec/17
find the nature of U_n   =Σ_(p=0) ^(p=n)   (1/C_n ^p )  .
$${find}\:{the}\:{nature}\:{of}\:{U}_{{n}} \:\:=\sum_{{p}=\mathrm{0}} ^{{p}={n}} \:\:\frac{\mathrm{1}}{{C}_{{n}} ^{{p}} }\:\:. \\ $$

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