# Math Help - integral problem

1. ## integral problem

1/(x+e^3x) dx

thank you

2. Originally Posted by questionboy
1/(x+e^3x) dx

thank you
I doubt it can be done. Where has the question come from? Are there meant to be integral terminals? Is this the entire question?

3. Evaluate from 0 to infinite. I don't know how to type the symbol.

4. Originally Posted by questionboy
Evaluate from 0 to infinite. I don't know how to type the symbol.
it can be determined that the integral converges ...

$\int_0^{\infty} \frac{1}{x+e^{3x}} \, dx < \int_0^{\infty} e^{-3x} \, dx = \frac{1}{3}$