home > q&a board > calculus > topic: integration

Q BgQuestion:

Pupil
Karma Points: 50
Respect (97%):
posted by  rose13 on 11/26/2008 10:55:01 PM  |  status: Live  

Integration

Course Textbook Chapter Problem
N/A N/A N/A N/A
Question Details:
How do I integrate  
Tags: Calculus

AAnswers:

Answer Question
Oracle
Karma Points: 18,764
posted by roydesoto on 11/26/2008 11:20:49 PM  |  status: Live
Asker's Rating: Helpful   
rose13's comment:
"Thanks!"
Response Details:
let u = x4 so du = 4x3 dx

integral becomes
Mentor
Karma Points: 481
(New Mexico Tech)
posted by The Joker on 11/27/2008 12:09:11 AM  |  status: Live
Asker's Rating: Helpful   
rose13's comment:
"Thanks!"
Response Details:
Ok so I do agree with letting u=ex4 so du=4x3
but 24(3x2)+ 4x3
/72x2 + 4x3 dx
=
 So that changes the integral if you set only x4= u. But of course I could be wrong, im just letting in a suggestion.
I do hope this helps!
 
"I think I can safely say that nobody understands Quantum Mechanics"
-Richard Feyman.
".....(Fe)male...male with iron
added, for greater strength, ductility, and magnetism".(unknown)
 
Also If I do mess up on your questions I am terribly sorry. I will try very hard to get them right! :) But I did take the time to answer your question, please take the time to rate! :) Thank you!
Oracle
Karma Points: 11,408
(University of North Florida)
posted by vladittude0583 on 11/27/2008 1:41:18 AM  |  status: Live
Asker's Rating: Helpful   
rose13's comment:
"Thanks!"
Response Details:
"In physics, you don't have to go around making trouble for yourself - nature does it for you" - Frank Wilczek
Oracle
Karma Points: 62,302
(University Of Central Florida)
posted by A-Rod 7821 on 11/27/2008 6:45:20 PM  |  status: Live
Asker's Rating: Helpful   
rose13's comment:
"Thanks!"
Response Details:
Use U-Substitution here:
let u=x4
du=4x3dx
du/(4x3)=dx
The integration formula for eu is:
Substitute back in what you set u as.
----(ANSWER)----
 
 
 
 
New York Yankees the best team in baseball without Brian Cashman!
Expert
Karma Points: 1,338
posted by borden on 11/27/2008 10:47:49 PM  |  status: Live
Asker's Rating: Helpful   
rose13's comment:
"Thanks!"
Response Details:
the very first techinque in solving integral problems is to see if the deverivate of one of the functions is in the integral if it isthen the power rule = f(x)^n+1/n+1
 
the deverivate is in there because the deverivate of x^4=4x^3
The 24 is a constant and can be factored out of the integral by the constant multiple rule and so can the 4 which=6
 
the integral of e^x^4=E^x^4+c
 
Final answer is 6e^x^4 + C
Answer Question
Ask New Question

Join Cramster's Community

Cramster.com brings together students, educators and subject enthusiasts in an online study community. With around-the-clock expert help and a community of over 100,000 knowledgeable members, you can find the help you need, whenever you need it. Join for free today » How Cramster is different from tutoring »

Need Help In

Useful Links