1 + 1/3 + 1/6+1/12+1/24+1/48+1/96
= 2/3 – 1/3 + 1/3 – 1/6+1/6- 1/12+1/12- 1/24+1/24-
1/48+1/48-1/96
=2/3_1/96
= 63/96
= 21/32
chúc cậu hc tốt ạ
1/3+1/6+1/12+1/24+1/48+1/96
1/3+1/6+1/12+1/24+1/48+1/96
1/3+1/6+1/12+1/24+1/48+1/96
1/3+1/6+1/12+1/24+1/48+1/96
1/3+1/6+1/12+1/24+1/48+1/96+1/192+1/384
Tính nhanh C = 1/3 + 1/6+ 1/12 + 1/24 + 1/48 + 1/96
tinh nhanh
1/3+1/6+1/12+1/24+1/48+1/96
Tính nhanh
1/3+1/6+1/12+1/24+1/48+1/96+1/192
Bài 2112: Tính nhanh :
1/3 + 1/6 + 1/12 + 1/24 + 1/48 + 1/96
