1/2+1/4+1/8+1/16
=1/2+1/2-1/4+1/4-1/8+1/8-1/16
=1-1/16
=15/16
Đúng 0
Bình luận (0)
1/2+1/4+1/8+1/16
=1/2+1/2-1/4+1/4-1/8+1/8-1/16
=1-1/16
=15/16
Tính nhanh:
A= 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64
Tính nhanh
1/2*4+1/4*6+1/6*8+1/8*10+1/10*12+1/10*14+1/14*16+1/16*18+1/18*20
Tính nhanh
1/2+1/4+1/8+1/16+....+1/256
tính nhanh :1/2+1/4+1/8+1/16+1/32
1,tính nhanh:1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128
tính nhanh :
A = 1/2 + 1/4 + 1/8 + 1/16 + 1/32
TÍnh nhanh :
49/5 + 1/2-1/4-1/8-1/16-1/32
tính nhanh: 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64 + 1/128
Tính nhanh:
2013×2015+100/2014×2014+99
1/2+1/4+1/8+1/16+1/32