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sir recurent

Posted: Thu Jun 04, 2009 2:13 pm
by Dragos Fratila
Determinati o formula explicita pentru sirul definit recurent:
\( I_n = I_{n-1}+(n-1)I_{n-2}, n\ge 3 \)
cu \( I_1 = 1, I_2 = 2 \)