- #1

biochem850

- 51

- 0

## Homework Statement

Find the derivative of:

sqrt(x^2-4)-2tan^-1{.5*sqrt(x^2-4)}

## Homework Equations

U'/1+U^2

U'=x/2sqrt(x^2-4)

1+U^2=x^2

## The Attempt at a Solution

I combined the above components but my answer is incorrect. I feel that I might have the wrong answer for "1+U^2". I just cannot seem to catch my error at the moment.