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**Evaluate the limit or determine that it DNE**

lim as (x,y) goes to (0,0) of [(sinx)(siny)]/(xy)

lim as (x,y) goes to (0,0) of [(sinx)(siny)]/(xy)

## The Attempt at a Solution

I can solve these when the denominator isn't zero, but pretty much rest of my homework deals with that situation. I'm really not sure how you solve multi-variable limits when you get a zero in the denominator. I know that with single variable limits you use L'hospital, but I'm not sure if that is possible in these situations. So I really need help with this.