你好!
1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256
=(1-1/2)+(1/2-1/4)+...+(1/128-1/256)
=1-1/2+1/2-1/4+1/4...-1/256
=1-1/256
=255/256
【希望可以帮到你】
计算:1/2+4/1+8/1+16/1+32/1+64/1+128/1+256/1
计算:1/2+4/1+8/1+16/1+32/1+64/1+128/1+256/1
数学人气:402 ℃时间:2019-09-16 21:15:21
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