Hi everyone,

I need to solve this integral, but I get stuck in some point and I can't go on. I explain what I have been trying:

Changing the variable as

So "u" would be:

Desarrollando esta expresión,llegamos a que:

Por lo que

The derivative of u with respect to:

Replacing these terms in the original integral we have:

When I get to this point, I don't know how to go on. The result of the integral would be like this:

I tried operating in other way, like this:

Doing the change of variable

we have this:

But again, I don't know how to continue.

Could you tell me what could I do to go on with the integral?