来自代学智的问题
1/2+1/4+1/8+1/16+1/32+1/64的简便运算
1/2+1/4+1/8+1/16+1/32+1/64的简便运算
1回答
2020-05-14 15:12
1/2+1/4+1/8+1/16+1/32+1/64的简便运算
1/2+1/4+1/8+1/16+1/32+1/64的简便运算
1/2+1/4+1/8+1/16+1/32+1/64
=1/2+1/4+1/8+1/16+1/32+1/64+1/64-1/64
=1/2+1/4+1/8+1/16+1/32+1/32-1/64
=1/2+1/4+1/8+1/16+1/16-1/64
=1/2+1/4+1/8+1/8-1/64
=1/2+1/4+1/4-1/64
=1/2+1/2-1/64
=1-1/64
=63/64
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