Suppose that f (n) = f (n∕5) + 3n2 when n is a positive integerdivisible by 5, and f (1) = 4. Finda) f (5). b) f (125). c) f (3125).

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Suppose that f (n) = f (n∕5) + 3n2 when n is a positive integer
divisible by 5, and f (1) = 4. Find
a) f (5).

b) f (125).

c) f (3125).

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