Question

How do you evaluate the integral `int dt/t` from 20 to `oo` if it converges?

Answer 1

This does not converge

Explanation:

`int_(20)^(oo) 1/t dt`

`= [ ln |t| ]_(t=20)^(t to oo)`

This does not converge because: `lim_(t to oo) ln t = oo`