- 225

- 0

**1. The problem statement, all variables and given/known data**

Use differentials to approximate the value of [tex] \sqrt{15}[/tex]

**2. Relevant equations**

N/A

**3. The attempt at a solution**

I can't really figure out how to start this, so any help would be appreciated. I know how I'd do it by Newton-Raphson Method, but this is what the sample exam asked for.