問題詳情

9. Consider the function f(x,y) =

.
(A) f(x,y) is not continuous at (0,0),
(B) f(x,y) is continuous at (0,0), but partial derivatives fa(0,0) and fy(0,0) do not exist.
(C) Both partial derivatives fx(0,0) and fy(0,0) exist, but f(x,y) is not differentiable at (0,0).
(D) f(x,y) is differentiable at (0,0).

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增