C nha bạn

67,2 nha bạn

(1 + \(\dfrac{2}{5}\)) x (1 + \(\dfrac{2}{7}\)) x (1 + \(\dfrac{2}{9}\)) x (1 + \(\dfrac{2}{11}\)) x.......x (1 + \(\dfrac{2}{97}\)) x (1 + \(\dfrac{2}{99}\))

Tính bằng cách thuận tiện:

(1-\(\dfrac{3}{4}\)) x (1 - \(\dfrac{3}{7}\)) x (1 - \(\dfrac{3}{10}\)) x (1 - \(\dfrac{3}{13}\)) x ....... x (1 - \(\dfrac{3}{97}\)) x (1 - \(\dfrac{3}{100}\))