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## Homework Statement

(x,y)---> (0,0)

x²+y²/√(x²+y²+1) - 1

the -1 isnt in the square root, so people know

## The Attempt at a Solution

i let y=o and got 2, and y=x² and x=y² and got 2, so how can i be sure this limit is 2, what other method must i try to be sure ?

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