E=1/2+1/14+1/35+1/65+...+1/527
1/2+1/14+1/35+....1/527
1/2+1/14+1/35+1/65+1/104+1/152 = ?
1/2+1/14+1/35+1/65+1/104+1/152
1/2+1/14+1/35+1/65+1/104+1/152
a=1/2+1/14+1/35+1/65+1/104+1/152
tìm S= 1/2 +1/14 + 1/35+ 1/ 65+ 1/104+ 1/152
Tính A=1/2+1/14+1/35+1/65+1/104+1/152
Tính nhanh :1/2+1/14+1/35+1/65+1/104+152