if " f ( 2 x -1 ) "=x2既2次方 - x + 1 , find the value of " f ( - 5 ) "
a. - 29
b. 7
c. 31
d. 133
要解釋
唔咪幾明
唔該晒
關於F.4數學題 (好趕的)
2006-10-22 4:12 am
回答 (1)
2006-10-22 4:17 am
✔ 最佳答案
f(2x-1)=x^2-x+1x=-2
f[2(-2)-1]=f(-5)=(-2)^2-(-2)+1=7
Ans=b=7
收錄日期: 2021-04-23 13:09:44
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20061021000051KK04921