简算:1/2+1/4+1/8+1/16+1/32+1/64+1/128
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简算:1/2+1/4+1/8+1/16+1/32+1/64+1/128简算:1/2+1/4+1/8+1/16+1/32+1/64+1/128简算:1/2+1/4+1/8+1/16+1/32+1/64+
简算:1/2+1/4+1/8+1/16+1/32+1/64+1/128
简算:1/2+1/4+1/8+1/16+1/32+1/64+1/128
简算: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=(1-1/2)+(1/2-1/4)+(1/4-1/8)+……+(1/64-1/128)=1-1/128=127/128
简算:1/2+1/4+1/8+1/16+1/32+1/64+1/128
1/2+1/4+1/8+1/16+32/1+1/128没有1/64简算
1/2+1/4+1/8+1/16+1/32+1/64(简算)
简算:1/2+1/4+1/8+1/16+1/32+…+1/4096=()
简算1+1/2+1/4+1/8+1/16+...+1/256=?
1/2+1/4+1/8+1/16+1/32(简算)
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8/9*{3/4-(7/16-1/4)}简算
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简算 2又5/8-(15/7-1又3/8 +1又8/15) 计算 1/2+1/4+1/8+1/16简算2又5/8-(15/7-1又3/8 +1又8/15)计算1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
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简算1/2-(1/2-1/4)-(1/4-1/8)-(1/8-1/16)-(1/16-1/32)-(1/32-1/64)如题~快点哇!九点之前答对的给十点……