## BecomeMyFan=D Group Title A simple integration prob 3 years ago 3 years ago

1. BecomeMyFan=D Group Title

$\int\limits_{}^{}(5x ^{3}+9x-4)/(x(x-1)(x ^{2}+4))$

2. BecomeMyFan=D Group Title

:)

3. BecomeMyFan=D Group Title

oh forgot a dx at the very end

4. BecomeMyFan=D Group Title

I am SO sorry

5. sstarica Group Title

lol it's alright I got what you mean, writing it on paper now :)

6. BecomeMyFan=D Group Title

I am so jealous of you guys who understand calculus :(

7. mstud Group Title

$-13\ln|(x+2)|/3+10\ln|x-1|/3+\ln|x|+c$

8. sstarica Group Title

but you can understand calculus if you want to ^_^ all you have to do is learn it and practice to add up the skills

9. mstud Group Title

The whole thing inf front of the slash is divided

10. sstarica Group Title

that was quick mstud, you sure of your answer? :)

11. sstarica Group Title

and andy , you can do well in mathematics just as you do well with computers ^_^, you're smart

12. mstud Group Title

Yes, checked it digitally ^.^

13. sstarica Group Title

do you know the steps? ^_^

14. sstarica Group Title

oh! got it! partial fractions! ^_^

15. mstud Group Title

Sorry I copied the integral from this webpage, before I solved it, so my answer was wrong, because x^3 was then x*3. The correct answer is: \ln(x^2+4)+2\ln(abs(x-1))+3arcTan(x/2)/2+\ln(abs(x))+c

16. BecomeMyFan=D Group Title

i guess i am just lazy to learn it... but then sooner or later i will have to learn it in university

17. mstud Group Title

If you want to see the solution, just visit WolframAlpha.com and plug in integrate (the expression), so I don't have to write it here with this terrible equation editor...

18. mstud Group Title

And maybe my solution here would get full of errors anyway ;_)

19. sstarica Group Title

oh no, my answer vanished :(

20. sstarica Group Title

and I got in the end: ln|x| + 2 ln|x -1| + 3/2 S (3/2x+1)/(x^2+4)dx you'll have to integrate the last part once more then add it up with the others .

21. sstarica Group Title

^_^