Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
find the integral of 1/x sqrt(5x^2)
not sure how to do an identity with the 5 in there
 one year ago
 one year ago
find the integral of 1/x sqrt(5x^2) not sure how to do an identity with the 5 in there
 one year ago
 one year ago

This Question is Closed

tkhunnyBest ResponseYou've already chosen the best response.1
What would you do if it were a '1', rather than a '5'?
 one year ago

Goten77Best ResponseYou've already chosen the best response.0
dw:1359690189282:dw hmm let me think for a sec
 one year ago

duff44Best ResponseYou've already chosen the best response.0
well 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.
 one year ago

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

matrickedBest ResponseYou've already chosen the best response.0
assume x=sqrt(5)*sinp ...
 one year ago

duff44Best ResponseYou've already chosen the best response.0
I would make x=sin theta sodw:1359690857236:dw
 one year ago

tkhunnyBest ResponseYou've already chosen the best response.1
Perfect. 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 \(x = \sqrt{5}\cdot\sin(\theta)\)?
 one year ago

duff44Best ResponseYou've already chosen the best response.0
dw:1359691617818:dw then just plug back in x for theta?
 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.