Question

(1 - 1/6) x (1- 1/7) x (1- 1/8) x (1 - 1/9) x (1-1/10)

=

=

Ai nhanh trả lời đầy đủ mk tk

Answer 1

(1 - \(\frac{1}{6}\)) x (1- \(\frac{1}{7}\)) x (1- \(\frac{1}{8}\)) x (1 - \(\frac{1}{9}\)) x (1-\(\frac{1}{10}\))

=\(\frac{5}{6}\)x \(\frac{6}{7}\)x \(\frac{7}{8}\)x \(\frac{8}{9}\)x \(\frac{9}{10}\)

= \(\frac{5\times6\times7\times8\times9}{6\times7\times8\times9\times10}\)

= \(\frac{5}{10}\)

=\(\frac{1}{2}\)