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MathNet 2016-part-07 — 182 problems (EN–VI) Question 65

Math Olympiad Vault · MathNet 2016-part-07 — 182 problems (EN–VI)

Question 65

Let the sequence $\{a_{i}\}_{i=0}^{\infty}$ be defined by $a_{0}=\frac{1}{2}$ and $a_{n}=1+(a_{n-1}-1)^{2}$. Find the product
$$
\prod_{i=0}^{\infty} a_{i} = a_{0} a_{1} a_{2} \ldots
$$