\(\Leftrightarrow A=\frac{2\cdot4}{3\cdot3}\cdot\frac{3\cdot5}{4.4}...\frac{49.51}{50.50}\)
\(\Rightarrow A=\frac{2\cdot4\cdot3\cdot5\cdot...\cdot49.51}{3\cdot3\cdot4\cdot4\cdot5\cdot5\cdot...\cdot50\cdot50}\)
\(\Rightarrow A=\frac{2\cdot51}{3\cdot50}\)
\(\Rightarrow A=\frac{17}{25}\)
Tính
A=\(\frac{8}{9}+\frac{15}{16}+\frac{24}{25}+...+\frac{2499}{2500}\)
Tính :\(y=\frac{8}{9}.\frac{15}{16}.\frac{24}{25}...\frac{2499}{2500}\)
Tính A=\(\frac{8}{9}.\frac{15}{16}.\frac{24}{25}....\frac{2499}{2500}\)
K=\(\frac{8}{9}.\frac{15}{16}.\frac{24}{25}.\frac{35}{36}.....\frac{2499}{2500}\)
Tính:
\(\frac{8}{9}.\frac{15}{16}.\frac{24}{25}...\frac{2499}{2500}\)
A = \(\frac{8}{9}.\frac{15}{16}.\frac{24}{25}....\frac{2499}{2500}\)tính A
. là nhân nha
Tính: \(A=\frac{8}{9}.\frac{15}{16}.\frac{24}{25}...\frac{2499}{2500}\)=?
\(A=\frac{3}{4}\times\frac{8}{9}\times\frac{15}{16}\times\frac{24}{25}\times.......\times\frac{2499}{2500}\)
Tính : \(P=\frac{8}{9}.\frac{15}{16}.\frac{24}{25}.\frac{35}{36}...\frac{2499}{2500}\)