1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256

来源:学生作业帮助网 编辑:作业帮 时间:2024/11/19 06:22:29
1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
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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

1/2+3/4+7/8+15/16+31/32+63/64+127/128+255/256
原式=8-(1/2+1/4+1/8+1/16+1/32+1/64+1/128+1/256)
=8-(1-1/256)
=7+1/256
That's all!

原式=8-(128+64+32+16+8+4+2+1)/256
=8-255/256
=7(1/256)