Fw: [請益] 有關一元一次方程式
※ [本文轉錄自 CS_TEACHER 看板 #1MVEvkyQ ]
作者: j0958322080 (Tidus) 看板: CS_TEACHER
標題: [請益] 有關一元一次方程式
時間: Fri Dec 25 15:21:15 2015
講義上給的定義是"經化檢過後的式子為ax = b,其中a=/=0",
但是在討論一元一次方程式的解的時候會討論三種情況
1. x = c(唯一解)
2. 0 = 0(無限多解)
3. 0 = b(無解)
不過其中2和3應該就不符合一元一次的定義了吧??
當然我知道題目一定都會給一個沒有化簡含有一元一次的未知數,
但我怕這樣子會讓學生以為一元一次也會有無解跟無限多解的情況。
請問各位老師是如何講解這邊的觀念的呢??
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※ 編輯: j0958322080 (140.115.223.6), 12/25/2015 15:26:10
※ 發信站: 批踢踢實業坊(ptt.cc)
※ 轉錄者: j0958322080 (140.115.223.6), 12/25/2015 17:12:00
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