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Suppose that a function f : R to R s...

Suppose that a function `f : R to R ` satisfies `f(x + y) = f(x) f(y)` for all x `y in R ` and `f(1) = 3` . If `underset(i=l)overset(n)sum f(i) = 363`, then n is equa to _______ .

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