问题描述:
找规律,再计算.
1/2+1/4+1/8
1/2+1/4+1/8+1/16
1/2+1/4+1/8+1/16+1/32
1/2+1/4+1/8+1/16+1/32+1/64
1/2+1/4+1/8
1/2+1/4+1/8+1/16
1/2+1/4+1/8+1/16+1/32
1/2+1/4+1/8+1/16+1/32+1/64
问题解答:
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