\(\frac{2}{3}.\frac{3}{4}.\frac{4}{5}.....\frac{99}{100}\)
\(=\frac{2.3.4.....99}{3.4.5.....100}\)
\(=\frac{2}{100}\)
\(=\frac{1}{50}\)
Ta có: 2/3 * 3/4 * 4/5 * 5/6 *....*99/100 = 2/3*99/100= 33/50
\(\frac{2}{3}.\frac{3}{4}.\frac{4}{5}....\frac{99}{100}\)
\(=\frac{2.3.4....99}{3.4.5....100}\)
\(=\frac{2}{100}\)
\(=\frac{1}{50}\)
hok tốt
\(\frac{2}{3}\cdot\frac{3}{4}\cdot\frac{4}{5}\cdot\cdot\cdot\cdot\cdot\frac{99}{100}=\frac{2\cdot3\cdot4\cdot5\cdot\cdot\cdot\cdot\cdot99}{3\cdot4\cdot5\cdot6\cdot\cdot\cdot\cdot\cdot100}=\frac{2.1.1.1.....1}{1.1.1.1.....100}=\frac{2}{100}=\frac{1}{50}\)
2/3.3/4.4/5.5/6....99/100
= 2/100
= 1/50
Dấu . là dấu nhân
\(\frac{2}{3}.\frac{3}{4}.\frac{4}{5}.....\frac{99}{100}\)
\(=\frac{2.3.4....99}{3.4.5....100}\)
\(=\frac{2}{100}\)
\(\frac{1}{50}\)
\(\frac{2}{3}\times\frac{3}{4}\times\frac{4}{5}\times\frac{5}{6}\times...\times\frac{99}{100}.\)
\(=\frac{2\times3\times4\times5\times...\times99}{3\times4\times5\times6\times...\times100}.\)
\(=\frac{2}{100}=\frac{1}{50}\)
