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1⼀4+1⼀8+1⼀16+1⼀32简便计算

2025-04-01 10:24:04

推荐回答（3个）

回答1：

m=1/4+1/8+1/16+1/32.....(1)
(1/2)m=1/8+1/16+1/32+1/64 ....(2)
(1)-(2)得
（1/2）m=1/4-1/64=15/64
所以：m=15/32

回答2：

原式=1/4+1/8+1/16+1/32+1/32 -1/32
=1/4+1/8+1/16+1/16-1/32
=1/4+1/8+1/8-1/32
=1/4+1/4-1/32
=1/2-1/32
=15/32

回答3：

原式=1-1/32
=31/32

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