1. (1+2)(1-2), 1^2 - 2^2, 是否(1+2)(1-2) 才是簡化form?
2. simpifiy 的定義是什麼??factorization 算唔算simpifiy 左??e.g. 2+4 =2(1+2)
3. Coordinate Geometry 中slope, 是否不可用小數作答案?
4.Gradient 是否可以用分數, 小數, 1:n 做答案??
5. How far north is B from O 點解???
Maths problems
2007-04-15 4:23 am
回答 (2)
2007-04-17 1:34 am
✔ 最佳答案
1. 1^2 - 2^2先係簡化form2. 簡化(simplify)即係冇晒括號,factorization同simplify係完全掉轉
3. slope 係要以分數作答
4. 1:n先係最正確
5. B同O相差幾遠(向北計)
2007-04-15 4:35 am
1.(1+2)(1-2)
=(1+2)(1)-(1+2)(2)
=(1+2)-(2+4)
=3-6
=-3
2.factorization 算simpifiy左
(I just answer two questions, but I hope I can help you la!)
=(1+2)(1)-(1+2)(2)
=(1+2)-(2+4)
=3-6
=-3
2.factorization 算simpifiy左
(I just answer two questions, but I hope I can help you la!)
參考: Me
收錄日期: 2021-04-12 23:50:53
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070414000051KK05047