設a=-a
求a
不可以是0
一條簡單的數學問題?
2015-09-05 4:59 am
回答 (1)
2015-09-05 8:59 am
在笛卡爾or複數平面上
a = π
-a = -π
a = -a = π = -π
a = π
-a = -π
a = -a = π = -π
收錄日期: 2021-04-23 23:44:52
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150904205916AAn6dxL