Các câu hỏi tương tự
A=1/2+1/6+1/12+1/20+1/30......1/9900
A=1/2+1/6+1/12+1/20+1/30+1/42
Tính nhanh : 1 / 2 + 1 / 6 + 1 / 12 + 1 / 20 + 1 / 30
1/2+1/6+1/12+1/20+1/30+.......+1/9702+1/9990
A= 1 phan 2 + 1 phan 6 + 1 phan 12 + 1phan 20 + 1 phan 30 + 1 phan 30 + 1 phan 42
1/2+1/6+1/12+1/20+1/30+1/x=41/42=?
tính giá trị biểu thức :1/2+1/6+1/12+1/20+1/30
tinh nhanh 1/2 +1/6 +1/12 +1/20 +1/30 +1/42
Tính T=1/2+1/6+1/12+1/20+1/30+....+1/9702+1/9900