指數.....--math -help
1. 1/ ^3 √(x^-4)
ans:x^(4/3)
回答 (3)
✔ 最佳答案
1 / 3 √ x-4
= 1 / (x-4)1/3
= 1 / x-4/3
= x4/3
x^ -1 = 1/x
運用了負指數
參考: 中四級數學書
正確ans.:
= 1 / (x-4)1/3
= 1 / x-4/3
= x4/3
2007-01-28 14:02:04 補充:
good ans.
1 / 3√(x^-4)
= 1 /(x^-4)1/3
= 1 / x^-4/3
= x^(4/3)
收錄日期: 2021-04-13 14:44:54
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