原式=(1/2+1/4)+1/8+1/16+1/32+1/64+1/128
=(3/4+1/8)+1/16+1/32+1/64+1/128
=(7/8+1/16)+1/32+1/64+1/128
=...
=127/128
.
1/2+1/4+1/8+1/16+1/32+1/64+1/128算出计算过程,
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相关问题
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计算：1-2\1-4\1-8\1-16\1-32\1-64\1-128\1=?
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简便计算1/2+1/4+1/8+1/16+1/32+1/64+1/128
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计算：1/2+4/1+8/1+16/1+32/1+64/1+128/1+256/1
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-1/2-1/4-1/8-1/16-1/32-1/64-1/128-1/256怎么简算?
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已知1/128+1/128=1/64,1/64+1/64=1/32那1/2+1/4+1/8+1/16+1/32+1/12
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1－1/2－1/4－1/8－1/16－1/32－1/64－1/128－1/256 等于多少?过程.
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1-2/1-4/1-8/1-16/1-32/1-64/1-128/1
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计算1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256+1/512+1/1024