Question

Tìm số tự nhiên X biết … = X

Answer 1

403 cô dạy rùi tick nha bạn ai tick mình nha

Answer 2

\(=\frac{\left(6.7.8....2014\right).2015}{\left(6.7.8....2014\right).5}=\frac{2015}{5}=403\)

Answer 3

\(1\frac{1}{5}\times1\frac{1}{6}\times1\frac{1}{7}\times...\times1\frac{1}{2014}=\frac{6}{5}\times\frac{7}{6}\times\frac{8}{7}\times...\times\frac{2015}{2014}=\frac{6\times7\times8\times...\times2015}{5\times6\times7\times...\times2014}=\frac{2015}{5}=403\)