Math Question. With Solution. Thanks?
回答 (2)
2016-02-03 4:17 am
✔ 最佳答案
Sol∫4x/(x^2+1)dx
=2∫1/(x^2+1)dx^2
=2∫1/(x^2+1)d(x^2+2)
=2ln(x^2+1)+c
(B)
2016-02-03 7:41 am
∫ 4x/(x²+1) dx
= 2 ln(x²+1) + C
Answer (B)
= 2 ln(x²+1) + C
Answer (B)
收錄日期: 2021-04-18 14:22:41
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