2. 次の関数 f(x,y) の偏導関数 fx (x,y), fu(x,y) を求
(S. 1)
シェ
((S.1).S.I) 1 (v.) =
(1) f(x,y) = x³
ASS
(S,I)t + (S-v) (S,1),A + (1 − ∞) (S,[).\ = =
J
I-VS- S = (8-) + (S− w) (S-) + (I − x)S =
-- S = s
(2) f(x, y) = xy**oto
01 (v.s)t = < Sys- $ = (v.)
3) ((1,8)\,1-
(3) f(x, y) =
X