Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing

This Question is Closed

koreanub Group TitleBest ResponseYou've already chosen the best response.0
\[\int\limits_{?}^{?} \frac{ 1 }{ \sqrt{x}(1+x) }\]
 one year ago

koreanub Group TitleBest ResponseYou've already chosen the best response.0
The question marks are not suppose to be there, so it's the problem without the question marks.
 one year ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
\int just use like this for integration ... seems like trig subs seems to work also changing 1 + x = (1 + i sqrt(x))(1  i sqrt(x)) and then taking partial fraction might work.
 one year ago

mukushla Group TitleBest ResponseYou've already chosen the best response.3
i believe usub will work
 one year ago

mukushla Group TitleBest ResponseYou've already chosen the best response.3
\[u=\sqrt{x}\] ha?
 one year ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
woops!! that also works!!
 one year ago

koreanub Group TitleBest ResponseYou've already chosen the best response.0
For this exercise, I'm technically not suposed to use partial fractions
 one year ago

koreanub Group TitleBest ResponseYou've already chosen the best response.0
I may be missing something, but I can't seem to find the answer with u = \[\sqrt{x} \]
 one year ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
change all x's into u's probably you would end up with 1/1+u^2 or something like that.
 one year ago

zepdrix Group TitleBest ResponseYou've already chosen the best response.0
You have to mess with the U a little bit kore :) but it will work.
 one year ago

hartnn Group TitleBest ResponseYou've already chosen the best response.0
x= tan^2 theta might work
 one year ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
this is same as using trig subs x = tan^2 theta in original.
 one year ago

experimentX Group TitleBest ResponseYou've already chosen the best response.0
but lol ... we know int 1/1+x^2 = arctan (x) which is one of the standard integral.
 one year ago

koreanub Group TitleBest ResponseYou've already chosen the best response.0
I got it! Yes!!! I was substituting the first \[\sqrt{x} \] in the integrand. Then, I realized that it gets canceled out. Thank you very much everyone! ... If it wasn't for you, I probably would have spent another 10 minutes on this. .
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.