Question

E= 4/3 x 5/4 x 6/5 x ... x 12/11

Answer 1

\(E=\frac{4}{3}\times\frac{5}{4}\times\frac{6}{5}\times...\times\frac{12}{11}\)

    \(=\frac{4\times5\times6\times...\times12}{3\times4\times5\times...\times11}=\frac{12}{3}=4\)

Answer 2

#)Giải :

\(E=\frac{4}{3}\times\frac{5}{4}\times\frac{6}{5}\times...\times\frac{12}{11}=\frac{4\times5\times6\times...\times12}{3\times4\times5\times...\times11}=\frac{12}{3}=4\)

Answer 3

\(E=\frac{4}{3}.\frac{5}{4}.\frac{6}{5}.....\frac{12}{11}\)

\(\Rightarrow E=\frac{4.5.6...12}{3.4.5....11}\)

\(\Rightarrow E=\frac{12}{3}=4\)

Rất vui vì giúp đc bn !!!