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" Given that "^((n+1))P(s):^(n)P(s)=3:2...

" Given that "^((n+1))P_(s):^(n)P_(s)=3:2

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The value of ""^(n)P_(1)+(""^(n)P_(2))/(2!)+(""^(n)P_(3))/(3!)+......+(""^(n)P_(n))/(n!)

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