更新1:
答案為-3≤f(x)≤22
更新2:
答案範圍最小是-3
答案為-3≤f(x)≤22
答案範圍最小是-3
收錄日期: 2021-04-30 16:07:23
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20111229000010KK01611