可吾可以幫我解答一條數學題目=]
設a和b是常數, r是方程 ax+b=0的根.問 ar+b的值是多少?
回答 (4)
✔ 最佳答案
因為r是 方程ax+b=0的根
所以代 r 去方程
ar+b=0
參考: ME
Since r is a root of the equation ax + b = 0,
by definition, x = r satisfies the equation.
So, ar + b = 0 where a is not equal to 0.
收錄日期: 2021-04-13 16:31:03
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20090312000051KK01053
檢視 Wayback Machine 備份