【备考资料】GMAT数学复习资料大全

brendaqian · 发表于 2010-11-22 21:38:14

求助啊啊啊！
For a finite sequence of nonzero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the two consecutive terms is negative. What is the number of variations in sign for the sequence 1, -3, 2, 5, -4, -6 ?
我怎么也看不明白这道题……哪位大虾能帮忙翻译一下？PREP破解版也完全没翻译，不太明白答案是怎么得来的呀~！

答案是？？

XYXB · 发表于 2010-11-22 22:22:50

求助啊啊啊！
For a finite sequence of nonzero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the two consecutive terms is negative. What is the number of variations in sign for the sequence 1, -3, 2, 5, -4, -6 ?
我怎么也看不明白这道题……哪位大虾能帮忙翻译一下？PREP破解版也完全没翻译，不太明白答案是怎么得来的呀~！

答案是？？

-- by 会员 brendaqian (2010/11/22 21:38:14)

同学，这个帖子是复习资料汇总贴，不做讨论用的噢。有疑问的话可以在论坛里搜索答案，也可以自己发新题提问

catfish0312 · 发表于 2010-11-23 07:23:04

呵呵。。好厉害

terryhan · 发表于 2010-11-23 14:49:30

厉害。。。。

chwcan · 发表于 2010-11-24 10:23:48

感谢分享！！！

ET911 · 发表于 2010-11-25 11:18:15

求密码！！！

jiejiexi · 发表于 2010-11-26 22:04:27

太谢谢楼主咯都是有用的东西

NoDoubt88 · 发表于 2010-11-27 13:05:17

强大~受用~终身~

tulipano · 发表于 2010-11-29 10:07:07

感谢

flyfang831 · 发表于 2010-11-30 05:02:08

OG11 RC 是不是没有答案啊？还有SC只有答案没有题？

【备考资料】GMAT数学复习资料大全

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