1/2+3/4+7/8+15/16+.255/256=?
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1/2+3/4+7/8+15/16+.255/256=?
![1/2+3/4+7/8+15/16+.255/256=?](/uploads/image/z/17268331-67-1.jpg?t=1%2F2%2B3%2F4%2B7%2F8%2B15%2F16%2B.255%2F256%3D%3F)
原式=1-1/2+1-1/(2*2).
=8-(1/2+1/(2*2).
利用等比数列求和公式.
=8-1+1/256
=7又1/256
=8-(1/2+1/(2*2).
利用等比数列求和公式.
=8-1+1/256
=7又1/256
1/2+3/4+7/8+15/16+31/32+63/64+128/127+255/256
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256+511/512+1024/1
1/2+3/4+7/8+15/16+31/32+63/34+127/128+255/256+511/512+1023/1
计算 1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
简便计算:1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256+511/512如何计算
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256用裂项解
计算:1/2+3/4+7/8+15/16+31/32+63/34+127/128+255/256+511/512+102
1.1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
(254*255+255*256+254*256-2)/(1+2+3+4+5+6+7+8+9+……+255)
计算2/8+3/8+7/16+15/32+31/64+63/128+127/256+255/512+511/1024=?