You purchase a certain product. The manual states that the lifetime T of the product, defined as the amount of time (in years) the product works properly until it breaks down, satisfies P(T≥t)=e^(-t/5), for all t≥0. For example, the probability that the product lasts more than (or equal to) 2 years is P(T≥2)=e^(-2/5)=0.6703. I purchase the product and use it for two years without any problems. What is the probability that it breaks down in the third year?