請問一些零指數及負指數既問題

2006-10-25 4:54 am
1.(x^2/3y^-3)^-2/(6x^-1y^3)

plz help!

答案對有分!因為我本書有答案,但我唔識點列式!

回答 (1)

2006-10-25 6:38 am
✔ 最佳答案
(x^2/3y^-3)^-2/(6x^-1y^3)
= [x^(-4)/3y^6]*[6xy^(-3)]
= (6/3)[x^(-4)x][y^(-6)y^(-3)]
= 2 x^(-3) y^(-9)

or = 2/(x^3y^9)


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