1/2-1/4-1/8-1/16-1/32-1/64=..
1/2 + 1/4 + 1/8 + .......... + 1/16 +1/32 + 1/64
1/2+1/4+1/8+1/16+1/32+1/64
A=1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64
Tính nhanh:
A= 1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64
1/2+ 1/4+ 1/8+1/16+1/32+1/64+1/134
1/2+1/4+1/8+1/16+1/32+1/64+1/128
1\2 + 1\4 + 1\8 + 1\16 + 1\32 + 1\64 + 1\128