2. There are 9 cards with numbers 1 to 9 marked on them respectively. If 2
cards are drawn at random, what is the probability that the product(積) of thenumbers is even?
可否用中文解釋啊!!!因為我唔明<<thx
更新1:
幫我解決呢2題數學!!
幫我解決呢2題數學!!
收錄日期: 2021-04-23 17:55:26
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080528000051KK02383