1. Integral

How to tell if integral converge or diverge?

this type of integrals should be evaluated in by using the limits ..
you should know how to take the limit of an improper integrals in correct way.
also, you should know the types of the improper integral which you are dealing with.
anyway at the end you will face a limit of specific function,
if the value of this limit is an finite number --> the integral converges.
if the value of this limit is not finite or D.N.E ---> the integral diverges.
also you should know that the impropet integral from 1 to infinity for [1]/[(x)^p]
is convergent if p > 1
and divergent if p <1

3. Originally Posted by TWiX
this type of integrals should be evaluated in by using the limits ..
you should know how to take the limit of an improper integrals in correct way.
also, you should know the types of the improper integral which you are dealing with.
anyway at the end you will face a limit of specific function,
if the value of this limit is an finite number --> the integral converges.
if the value of this limit is not finite or D.N.E ---> the integral diverges.
also you should know that the impropet integral from 1 to infinity for [1]/[(x)^p]
is convergent if p > 1
and divergent if p <1
Is that I got doubts that topic about convergence

http://www.mathhelpforum.com/math-he...gral-test.html

4. Originally Posted by Apprentice123
How to tell if integral converge or diverge?
The one I'm thinking of converges. Does that help?

Probably not, which is why such vague questions cannot be answered and shouldn't be asked. Surely you have a textbook, class notes, know how to use Google etc.

If you have a specific question, post it.