用lim做ah!
試求下列各曲綫在指定x值的切线斜率
y=sinx,在x=0
y=cosx,在x=π/2
y=tanx,在π/4
收錄日期: 2021-04-23 20:41:04
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20080420000051KK03442