# How do i simplify this

1. Feb 18, 2009

### jimbo71

1. The problem statement, all variables and given/known data
sqrt(1+4t^2)

2. Relevant equations

3. The attempt at a solution
I'm not sure if this even can be simplified. If it can't be how would I integrate it?

2. Feb 18, 2009

### Tom Mattson

Staff Emeritus
Why would you want to simplify it? It's already perfectly set up for trig substitution.

3. Feb 18, 2009

### tiny-tim

Hi jimbo71!

Hint: whenever you see a constant ± a square, it usually helps to try a trig substitution.