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让岳大侠认输,让阿懵刻意回避的数学题
为了让大家难受,弄来一道高中数学题。因为这道题让岳大侠认输,让阿懵刻意回避,所以悬赏1000金币求答案。
A crystal sculpture consists of infinitely many cubes.
Start with a cube with side length of 1. Then,at the center of each face,attached a cube with side length of 1/3 (so that the center of a face of each attached cube is the center of a face of the original cube).
Continue this procedure indefinitely: at the center of each exposed face of a cube in the structure,attached (in the same fashion) a smaller cube with side length one-third that of the exposed face.
What is the volume of the entire crystal sculpture?
shen_fuen: 我喜欢"喜欢"两个字, 1000金币就包在你身上了!
VANO: 湾湾们似乎对金帀都不敢兴趣,就是悬赏5000也激发不起来。
如果这样写的话:
标题:求助
内容:我家小儿子的家庭作业,老子我石头人实在是不懂这个,
只得求 ...
VANO: 你做出来的话,我再加一千门银子好了
ManCreatedGod: 应该是1+6x(1/3)^3 ... ... = 1 + 2/9 + (2/9)^2 + ... ... + (2/9)^n ... ... = 1/(1-2/9)= 9/7
shen_fuen: you should think more carefully!!!
shen_fuen: 城里的兔崽子搜狗搜到了
shen_fuen: 城里的兔崽子搜狗搜到了
VANO: 嗯,可以。
iMan: 何以见得城里的人脑子比我快?他们做了多少时间?我做了多少时间你知道吗?
以后别把中学数学题这种体力劳动当IQ。 ...
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