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## Homework Statement

Let f(x, y) = |xy|.

I want to prove that f is not continuous at (0,0).

## The Attempt at a Solution

To prove that f is not continuous at (0,0) I think I need to show that

[tex]\lim_{(x, y) \to (0, 0)}|xy| \neq 0[/tex]

I'm a little confused about the |absolute value| signs and I don't know know what to do with them. Can anyone help please? (there's nothin about this in my book)