科数网
题号:12477    题型:单选题    来源:李艳芳考研数学预测三套卷(数二)2023版
若二元函数 $f(x, y)$ 存在二阶连续偏导数, 且满足 $f(x, y)=-f(y, x)$, 则下列结论中, 错误的是
$\text{A.}$ $f_{11}^{\prime \prime}(x, y)=f_{22}^{\prime \prime}(x, y)$. $\text{B.}$ $f_{11}^{\prime \prime}(x, y)=-f_{22}^{\prime \prime}(y, x)$. $\text{C.}$ $f_{12}^{\prime \prime}(x, y)=f_{21}^{\prime \prime}(x, y)$. $\text{D.}$ $f_{12}^{\prime \prime}(x, y)=-f_{21}^{\prime \prime}(y, x)$.
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