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
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
Tính nhanh: 1/2+1/14+1/35+1/65+1/104+1/152
tính nhanh
1/2+1/14+1/35+1/65+1/104+1/152
tính nhanh
1/2+1/14+1/35+1/65+1/104+1/152