maths mc

wendy

2007-04-26 8:49 pm

2^2nx9^n除3^n
=

回答 (2)

Lullaby

2007-04-26 8:54 pm

✔ 最佳答案

2^2nx9^n除3^n
=2^2nx3^2n除3^n
=2^2nx3^(2n-n)
=2^2nx3^n

參考: me

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noone

2007-04-26 9:07 pm

2^2nx9^n÷3^n
=2^2nX3^2n÷3^n
=2^2nX3^n

ANS.2^2nX3^n

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