questions about integration

2012-10-31 3:55 am
Find ∫ (x^x) dx
and
Finf ∫ (ln x) dx

回答 (2)

2012-10-31 9:29 am
✔ 最佳答案
寫左第二題先,第一題要再諗下~~
∫ lnx dx
= x lnx - ∫ x 1/x dx [integration by parts]
= xlnx - ∫ dx
= xlnx -x +C
參考: maeducation.edu.hk
2012-10-31 2:58 pm
Int. x^x can't be expressed n term of elementary function.

2012-10-31 06:58:32 補充:
in
.


收錄日期: 2021-04-13 19:05:32
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