• Support PF! Buy your school textbooks, materials and every day products Here!

Improper Integral Confusion

  • Thread starter sinequanon
  • Start date
  • #1

Homework Statement



[tex]\int(2dx/(x^2+4)[/tex]
from x= -[tex]\infty[/tex] to x=2

Homework Equations



No specific ones.

The Attempt at a Solution



So, from there I tried to split the integral into two, integrating between 2 and -2, and -2 and -[tex]\infty[/tex], but I got very lost trying to take the limits for these, partly because I don't know what to set as the approaching variables in each case. And integrating the function actually is another issue. Could someone take a look?
 
Last edited:

Answers and Replies

  • #2
rock.freak667
Homework Helper
6,230
31
I think you need to integrate that over.

[tex]\int \frac{1}{x^2+4} \neq lnG(x)[/tex]
 

Related Threads on Improper Integral Confusion

Replies
3
Views
533
  • Last Post
Replies
7
Views
779
  • Last Post
Replies
12
Views
3K
  • Last Post
Replies
1
Views
2K
  • Last Post
Replies
1
Views
1K
  • Last Post
Replies
3
Views
1K
  • Last Post
Replies
1
Views
596
  • Last Post
Replies
3
Views
2K
  • Last Post
Replies
1
Views
693
  • Last Post
Replies
3
Views
704
Top