Suppose that internet users access a particular website according to a Poisson process with rate λ per hour, but λ is unknown. The webmaster believes that λ has a continuous distribution with pdf f(λ) = 2e ^2λ , for λ > 0, and f(λ) = 0 otherwise. Let X be the number of users who access the website during a one-hour period. If X = 1 is observed, find the conditional pdf of λ given X = 1.