Question

Answer 1

\(=\dfrac{1}{2}.\dfrac{2}{3}.\dfrac{3}{4}.\dfrac{4}{5}...\dfrac{98}{99}.\dfrac{99}{100}=\dfrac{1}{100}\)

Answer 2

1/100 nha ban

Answer 3

\(\left(1-\dfrac{1}{2}\right)\left(1-\dfrac{1}{3}\right)\left(1-\dfrac{1}{4}\right)\cdot...\cdot\left(1-\dfrac{1}{99}\right)\cdot\left(1-\dfrac{1}{100}\right)\)

\(=\dfrac{1}{2}\cdot\dfrac{2}{3}\cdot\dfrac{3}{4}\cdot...\cdot\dfrac{98}{99}\cdot\dfrac{99}{100}\)

\(=\dfrac{1}{100}\)

Answer 4

1/100 nhé