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- June 16th 2011, 02:17 PM #1

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## deferentiability question ts7 q1

i have this function

and f(x,y)=0 on point (0,0)

i dont know the proper english term

i need to prove that f(x,y) is deferentialbe

so by the definition

and i need to find those epsilons which will make the sude to be equal

and both epsilons will go to zeroo when x and y are going to zero

i dont know what to put instead of "f" in each term

because the function is stplitted

- June 16th 2011, 02:25 PM #2
## Re: deferentiability question ts7 q1

- June 16th 2011, 11:58 PM #3

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- June 17th 2011, 01:35 AM #4

- June 17th 2011, 01:50 AM #5

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