1.

Given the recurrence relation f(n) = (n - 1) + f(n - 1), n > 72, f(2) = 1, then f(n) is:

A. \(\dfrac{3}{2}n(n-1)\)
B. \(\dfrac{n(n+1)}{2}\)
C. \(\dfrac{n(n-1)}{2}\)
D. \(\dfrac{3}{2}n(n+1)\)
Answer» D. \(\dfrac{3}{2}n(n+1)\)


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