笑笑在计算1⼀2+1⼀4+1⼀8+1⼀16时,运用了数形结合的解题策略(如下图所示)

请计算:/2+1/4+1/8+1/16+……+1/512的结果是多少?
2024-12-02 23:41:22
推荐回答(5个)
回答1:

1/2+1/4+1/8+1/16+……+1/512
=1-1/512
=511/512

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回答2:

由图可知1/2+1/4+1/8+1/16=1-1/16=15/16
故1/2+1/4+1/8+1/16+……+1/512=1-1/512=511/512

回答3:

可以由前几项推出,面积就等于1-最后一项,比如1/2+1/4=1-1/4, 1/2+1/4+1/8=1-1/8 所以1/2+1/4+……+1/512=1-1/512=511/512
解毕!

回答4:

1/2+1/4+1/8+1/16+……+1/512
=1-1/512
=511/512

回答5:

1-1/512=511/512