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Posted: **Sat Jul 09, 2022 3:37 pm**

: I Find All First And Second Order Partial Derivatives Of F X Y X Y Cos Xy Ii Find Xy Lim X Y 0 0 X Y 1 (35.04 KiB) Viewed 75 times

(i) Find all first and second order partial derivatives of f(x, y) = x²y + cos(xy) (ii) Find xy² lim (x,y)→(0,0) x³ + y³ if the limit exists. If it does not exist, explain why.