Question

F=(1.1/1.2).(2.2/2.3)(3.3/3.4).(4.4/4.5) 

Answer 1

bạn ghi rõ lại đề bài đi

Answer 2

Bài làm:

Ta có: \(F=\left(\frac{1.1}{1.2}\right).\left(\frac{2.2}{2.3}\right).\left(\frac{3.3}{3.4}\right)\left(\frac{4.4}{4.5}\right)\)

\(F=\frac{1}{2}.\frac{2}{3}.\frac{3}{4}.\frac{4}{5}\)

\(F=\frac{1}{5}\)

Answer 3

Bài làm 

\(F=\left(\frac{1.1}{1.2}\right)\left(\frac{2.2}{2.3}\right)\left(\frac{3.3}{3.4}\right)\left(\frac{4.4}{4.5}\right)\)

\(=\frac{1}{2}.\frac{2}{3}.\frac{3}{4}.\frac{4}{5}=\frac{1.2.3.4}{2.3.4.5}=\frac{1}{5}\)

Answer 4

F=(1.1/1.2).(2.2/2.3).(3.3/3.4).(4.4/4.5)

F =1/2 . 2/3 .3/4 .4/5

F=1.2.3.4/2.3.4.5

F=1/5

Answer 5

\(F=\left(\frac{1.1}{1.2}\right).\left(\frac{2.2}{2.3}\right).\left(\frac{3.3}{3.4}\right).\left(\frac{4.4}{4.5}\right)\)

\(F=\frac{1}{2}\cdot\frac{2}{3}\cdot\frac{3}{4}\cdot\frac{4}{5}\)

\(F=\frac{1}{5}\)