出道题
出道题
任意给定3个点,它们能组成钝角三角形的概率有多大
再加一个,
apple is 2 cents each, banana is 3 cents each, and grapefruit is 4 cents each. How much is pear ?
ps 被我伴郎的新郎的仔, 30天. 小样得意的笑~~
再加一个,
apple is 2 cents each, banana is 3 cents each, and grapefruit is 4 cents each. How much is pear ?
ps 被我伴郎的新郎的仔, 30天. 小样得意的笑~~
Comments
peng:
那不是1/2么? 为虾米是3/4呢? @_@
Kyle:
对不起哈,刚看到你的留言一个办法是考虑三点的外接圆。三点组成钝角三角形的概率等于三点不在一个半圆上的概率
peng:
讲解哈第一道题的思路嘛! 困扰俺几天了 ~~
Kyle:
1) 3/4 2) 2 cents
peng:
求答案 。。。
peng:
第一道题跟空间有限无限 有没关系呢 ?
peng:
pear 2 cents…
Victoria:
read the first paragraph… i didnt say i write it.ok? why cant u just just let it go~~~~~~ oh oh by the way, even, even i just take it directly without any words left im in China, plagiarism ! what a big deal! sue me!
Echo:
也太可愛了吧~~~!!!!!!!!!!!!!
Unknown:
pear两分一个
Unknown:
答案,1/2概率
LI:
这也忒有效率了~~~
kit:
还以为是你的仔…