Tính nhanh 3/2 + 3/8 + 3/32 + 3/128 + 3/512
Tinh nhanh:3/2+3/8+3/32+3/128+3/512
tính nhanh tổng sau3/2+3/4+3/8+3/16+3/32+3/64+3/128+3/256+3/512
GIÚP MÌNH NHÁ
1. Tính nhanh tổng sau :
3/2 + 3/4 + 3/8 + 3/16 + 3/32 + 3/64 + 3/128 + 3/256 + 3/512 + 3/1024
BÀI TÍNH NHANH
A.2/3+2/6+2/12+2/24+2/48+2/96+2/192
B.1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
C.1/3+1/9+1/27+1/81+1/243+1/729
D.3/2+3/8+3/32+3/128+3/512
E.3+3/5+3/25+3/125+3/625
Tính nhanh
D = 3/2 + 3/8 + 3/32 + 3/128 + 3/512
E = 3 +3/5 + 3/25 + 3/125 + 3/625
G = 1/5 + 1/10 + 1/20 + 1/30 +....+ 1/1280
3/2+3/8+3/32+3/128+3/512
3/2 + 3/8 +3/32 +3/128 +3/512
1.b=5/2+5/6+5/18+5/54+5/162+5/486
2.c=3/2+3/8+3/32+3/128+3/512
