f(x)=((x^3)(ln x^2))
find f'(x)
f(x)=((x^3)(ln x^2)) find f'(x
2015-06-11 9:15 am
回答 (2)
2015-06-11 9:38 am
✔ 最佳答案
f'(x) = (3x^2)(ln x^2) + (x^3)(1/x^2)(2x)f'(x) = x^2 (3lnx^2+2)
2015-06-11 17:51:47 補充：
係喎冇抽到個2出嚟 多謝提醒
f'(x) = 2x^2 (3lnx+1)
2015-06-11 4:08 pm
Toi Lam 的答案也是正確的。
f(x) = x³ (ln x²)
= 2x³ (ln x)
f'(x) = 6x² (ln x) + 2x³ (1/x)
= 6x² (ln x) + 2x²
= 2x² (3 ln x + 1)
f(x) = x³ (ln x²)
= 2x³ (ln x)
f'(x) = 6x² (ln x) + 2x³ (1/x)
= 6x² (ln x) + 2x²
= 2x² (3 ln x + 1)
收錄日期: 2021-04-16 16:49:40
原文連結 [永久失效]:
https://hk.answers.yahoo.com/question/index?qid=20150611000051KK00005