2^2nx9^n÷3^n=
A)6^2n
B)6^3n
C)12^n
D)12^2n
maths mc question
2007-04-26 9:44 pm
回答 (2)
2007-04-26 9:53 pm
✔ 最佳答案
C)12^n(22n) x (9n)/ (3n)
= (22n) x (32n)/ (3n)
= (22)n x (32n - n)
= (22)n x (3n)
= [22(3) ]n
= 12n
收錄日期: 2021-04-12 21:28:21
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20070426000051KK01482