For 1, I cannnot apply the rule because if you plug in 1 into x you actally get a number, 0/2=0 correct? or no?
for 2, same thing, you cannot apply because you end up getting 0/1=0
correct?
收錄日期: 2021-04-30 23:56:43
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20140726163029AAP4sRJ