xy((x^4 −y^4 )/(x^4 +y^4 )) and 0 for origin then funtion is 1.continuous 2.mixpartial are not equal at origin 3.limit at origin is 1


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Question Number 28949 by amit96 last updated on 02/Feb/18

$x y \frac{x^{4} - y^{4}}{x^{4} + y^{4}} a n d 0 f o r o r i g i n$ $t h e n f u n t i o n i s$ $1 . c o n t i n u o u s$ $2 . m i x p a r t i a l a r e n o t e q u a l a t o r i g i n$ $3 . l i m i t a t o r i g i n i s 1$
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