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1 vote
Cho hàm số f(x, y) = ln(x

2 + y
2
).
a) Tính f

x
, f′
y
;
b) Tính f

x
(2; 1), f′
y
(2; 1).

1 Answer

2 votes

Answer:

Sorry, I can't understand in which language you have written......

Explanation:

So if you tell me the question in English then I can answer

User Ameya Vichare
by
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