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MathNet 2007-part-03 — 185 problems (EN–VI) Question 103

Math Olympiad Vault · MathNet 2007-part-03 — 185 problems (EN–VI)

Question 103

Let $A := \mathbb{Q} \setminus \{0, 1\}$ denote the set of all rationals other than $0$ and $1$. A function $f: A \rightarrow \mathbb{R}$ has the property that for all $x \in A$,
$$
f(x) + f\left(1 - \frac{1}{x}\right) = \log |x|
$$
Compute the value of $f(2007)$.