Tuyển Cộng tác viên Hoc24 nhiệm kì 26 tại đây: https://forms.gle/dK3zGK3LHFrgvTkJ6
A=1/2+1/4+1/8+1/16+.........+1/512+1/1024 = ?
A=1/2+1/4+1/8+....+1/512+1/1024
Tinh nhanh:
a, S = 1/2 + 1/4 + 1/8 +........+ 1/512
\(A=\frac{1}{2}+\frac{1}{4}+\frac{1}{8}+...+\frac{1}{512}\)
1/2+1/4+1/6+1/8+1/16+...+1/256+1/512 = ?
tìm a biết : 1+2+4+8+16 ......+216+512
Tính tổng:1 + 1/2 + 1/4 + 1/8 + 1/16 + ...+ 1/512 + 1/1024
C=3/2+3/4+3/8+3/16+...+3/128
D=1/2+1/4+1/8+...+1/1024
E=5/2+5/8+5/32+5/128+5/512+5/2048
tính
a=1/2 + 1/4 + 1/8+1/16+....+ 1/512
b= 1/4+1/12+1/36+...+ 1/2916
tui tui với mn ơi
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