Question

[Nhung Hong]

nhờ mn lm giúp mk vs

Answer 1

[Bùi Hà Chi]

\(\left(1-\dfrac{1}{2}\right)\left(1-\dfrac{1}{3}\right)\left(1-\dfrac{1}{4}\right)...\left(1-\dfrac{1}{50}\right)=\dfrac{1}{2}.\dfrac{2}{3}.\dfrac{3}{4}...\dfrac{49}{50}=\dfrac{1}{50}\)