- #1

PhysicalProof

- 10

- 0

## Homework Statement

Prove the following, using the meaning of a limit:

## Homework Equations

epsilon > 0, delta > 0

0 < sqrt(x^2 + y^2) < delta

| f(x) - 0 | < epsilon (1)

## The Attempt at a Solution

So, I know that I have to elaborate on the inequality in (1), further. However, I'm not sure of how to go about this. If I start transposing it seems to get much too messy and I end up with a proposed delta which seems far too complex. Is there some simplification that I'm overlooking here?

Any help is really appreciated, ta.