G=7/2.(2/1.3+2/3.5+2/5.7+...+2/199.201)
G=7/2.(1-1/3+1/3-1/5+1/5-1/7+.....+1/199.201
G=7/2.(1-1/201)
G=7/2.200/201
G=1400/402
G=700/201
\(G=\frac{7}{1.3}+\frac{7}{3.5}+\frac{7}{5.7}+...+\frac{7}{199.201}\)
\(G=7\left(\frac{1}{1.3}+\frac{1}{3.5}+\frac{1}{5.7}+...+\frac{1}{199.200}\right)\)
\(G=\frac{7}{2}\left(\frac{2}{1.3}+\frac{2}{3.5}+\frac{2}{5.7}+...+\frac{2}{199.201}\right)\)
\(G=\frac{7}{2}\left(1-\frac{1}{3}+\frac{1}{3}-\frac{1}{5}+\frac{1}{5}-\frac{1}{7}+...+\frac{1}{199}-\frac{1}{201}\right)\)
\(G=\frac{7}{2}\left(1-\frac{1}{201}\right)\)
\(G=\frac{7}{2}.\frac{200}{201}\)
\(G=\frac{700}{201}\)
