Simplify the followings and represent in positive indices.
1) (f^6)^3=????
2) (r^2/s^3)^4=?????
3) (2ab^4)^4=??????
f.3mathz
2008-08-11 3:39 am
回答 (2)
2008-08-11 3:51 am
✔ 最佳答案
1) By using the indentity (a^x)^y=a^(xy)(f^6)^3
=f^18
2)Use the identity (a/b)^x=(a^x)/(b^x)
(r^2/s^3)^4
=[(r^2)^4]/[(s^3)^4]
Now use the identity in 1)
=r^8/s^12
3) Use the identity (ab)^x=(a^x) x (b^x)
(2ab^4)^4
=2^4 x a^4 x (b^4)^4
=16a^4b^16
收錄日期: 2021-04-14 20:47:42
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