Cho A=1/2+1/6+1/12+1/20+1/30+...+1/n. Biết A=49/50 tìm n .
Cho A=1/2+1/6+1/12+1/20+1/30+.....+1/n
Biết A=49/50
Tìm N
Cho A= 1/2 + 1/6 + 1/12 + 1/20 + 1/30 + ....+ 1/n
Biết A = 49/50 tìm n
A= 1/2 + 1/6 +1/12+1/20+1/30+...+1/n A=49/50 Tìm n.
A= 1/2 + 1/6 +1/12+1/20+1/30+...+1/n
A=49/50
Tìm n.
A= 1/2 + 1/6 + 1/12 + 1/20 .......+ 1/n
Tìm n biết A là 49/50
Cho A = 1/2 + 1/6 + 1/12 + 1/20 +1/30 + ....... + 1/n . Biết A = 49/50 . Tìm n .
| 1560 | 2450 |
A=1/2+1/6+1/12+1/20+1/30+...+1/n biet A=49/50
A = 1/2 + 1/6 + 1/12 + 1/20 + 1/30 + 1/n
A = 49/50
Tim n
