Question

integration of

Answer 1

\[\int\limits_{0}^{\infty} \frac{ x }{ x ^{2}+1}dx\]

Answer 2

what do you need help with?

Answer 3

i know that integration of one over x square plus one is tan inverse

Answer 4

what do i need to do with extera x because i already solve the \[\int\limits_{o}^{\infty}\frac{ 1 }{ x ^{2}+1} dx\]

Answer 5

as \[\frac{ \pi }{ 2}\]

Answer 6

the x in the numerator?

can you use other techniques besides whatever you're doing now?

Answer 7

i dont know i guess

Answer 8

you can solve this with substitution

u = x^2 +1
du = 2x dx

Answer 9

found it https://sg.answers.yahoo.com/question/index?qid=20080204223822AA2f4L7

Answer 10

thankx