[微積] 問一題微積分求極值
f(x,y)=x^4+y^4-4xy+2
on the set D={(x,y) 0<x<3,0<y<2}
求 local max min還有 absolute max min
上面那個 x y的範圍是小於等於
不好意思我不會打小於等於的符號
請問這題怎麼算?
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