1/2 + 1/4 + 1/8 + 1/16 + 1/32
= 1 - 1/2 + 1/2 - 1/4 + 1/4 - 1/8 +....+ 1/16 - 1/32
= 1 - 1/32
= 31/32
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Các câu hỏi tương tự
49/2 - 1/2 - 1/4 - 1/8 - 1/16 - 1/32
1/2 + 1/4 + 1/8 + 1/16 + 1/32 + ... = ?
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
1/2+1/4+1/8+1/16+1/32+1/64
Tính: A = 1/2+1/4+1/8 + 1/16 + 1/32 + 1/64.
Xem chi tiết
1+1/2+1/4+1/8+1/16+1/32+......+1/1024
A=1/2 + 1/4 + 1/8 + 1/16 + 1/32 + 1/64