A community for students.
Here's the question you clicked on:
 0 viewing
duff44
 2 years ago
find the integral of 1/x sqrt(5x^2)
not sure how to do an identity with the 5 in there
duff44
 2 years ago
find the integral of 1/x sqrt(5x^2) not sure how to do an identity with the 5 in there

This Question is Closed

tkhunny
 2 years ago
Best ResponseYou've already chosen the best response.1What would you do if it were a '1', rather than a '5'?

Goten77
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1359690189282:dw hmm let me think for a sec

duff44
 2 years ago
Best ResponseYou've already chosen the best response.0well if it was a 1 I could use a^2x^2 as the identity for sin but I dont think taking sqrt of 5 is the way to go.

tkhunny
 2 years ago
Best ResponseYou've already chosen the best response.1You didn't quite answer my question. What substitution would you actually use if it were a 1?

matricked
 2 years ago
Best ResponseYou've already chosen the best response.0assume x=sqrt(5)*sinp ...

duff44
 2 years ago
Best ResponseYou've already chosen the best response.0I would make x=sin theta sodw:1359690857236:dw

tkhunny
 2 years ago
Best ResponseYou've already chosen the best response.1Perfect. So, \(1  x^{2}\) leads to \(x = \sin(\theta)\). You already suggested that \(a^{2}  x^{2}\) leads to \(x = a\cdot\sin{\theta}\). Why would \(5  x^{2}\) lead to anything but \(x = \sqrt{5}\cdot\sin(\theta)\)?

duff44
 2 years ago
Best ResponseYou've already chosen the best response.0dw:1359691617818:dw then just plug back in x for theta?
Ask your own question
Sign UpFind more explanations on OpenStudy
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.