高数,在线等,挺急的
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F(x,y) = y∫(y->x) e^(-t^2) dt
Fx(x,y) =∂/∂x F(x,y) = ye^(-x^2)
Fxy(x,y)
=∂/∂y(Fx(x,y) )
= -2xye^(-x^2) + e^(-x^2)
Fy(x,y)
=∂/∂y F(x,y)
=∫(y->x) e^(-t^2) dt - ye^(-y^2)
Fyy(x,y)
=∂/∂y(Fy(x,y))
=-e^(-y^2) - (1-2y^2) e^(-y^2)
=(2y^2 -2)e^(-y^2)
Fx(x,y) =∂/∂x F(x,y) = ye^(-x^2)
Fxy(x,y)
=∂/∂y(Fx(x,y) )
= -2xye^(-x^2) + e^(-x^2)
Fy(x,y)
=∂/∂y F(x,y)
=∫(y->x) e^(-t^2) dt - ye^(-y^2)
Fyy(x,y)
=∂/∂y(Fy(x,y))
=-e^(-y^2) - (1-2y^2) e^(-y^2)
=(2y^2 -2)e^(-y^2)
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