\(曲面z=f(x,y)在(x_0,-y_0)的切平面方程是(\,)\) A: \[z=f(x_0,y_0)+f_x(x_0,y_0)(x-x_0)+f_y(x_0,y_0)(y-y_0)\] B: \[z=f(x_0,-y_0)-f_x(x_0,-y_0)(x-x_0)-f_y(x_0,y_0)(y+y_0)\] C: \[z=f(x_0,-y_0)+f_x(x_0,-y_0)(x-x_0)-f_y(x_0,-y_0)(y+y_0)\] D: \[z=f(x_0,-y_0)+f_x(x_0,-y_0)(x-x_0)-f_y(x_0,-y_0)(y-y_0)\]

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2022-06-29

\(曲面z=f(x,y)在(x_0,-y_0)的切平面方程是(\,)\) A: \[z=f(x_0,y_0)+f_x(x_0,y_0)(x-x_0)+f_y(x_0,y_0)(y-y_0)\] B: \[z=f(x_0,-y_0)-f_x(x_0,-y_0)(x-x_0)-f_y(x_0,y_0)(y+y_0)\] C: \[z=f(x_0,-y_0)+f_x(x_0,-y_0)(x-x_0)-f_y(x_0,-y_0)(y+y_0)\] D: \[z=f(x_0,-y_0)+f_x(x_0,-y_0)(x-x_0)-f_y(x_0,-y_0)(y-y_0)\]

\(曲面z=f(x,y)在(x_0,-y_0)的切平面方程是(\,)\)
A: \[z=f(x_0,y_0)+f_x(x_0,y_0)(x-x_0)+f_y(x_0,y_0)(y-y_0)\]
B: \[z=f(x_0,-y_0)-f_x(x_0,-y_0)(x-x_0)-f_y(x_0,y_0)(y+y_0)\]
C: \[z=f(x_0,-y_0)+f_x(x_0,-y_0)(x-x_0)-f_y(x_0,-y_0)(y+y_0)\]
D: \[z=f(x_0,-y_0)+f_x(x_0,-y_0)(x-x_0)-f_y(x_0,-y_0)(y-y_0)\]

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