Exercise
Find second order partial derivatives of the function
z(x,y)=x^3+3xy^2-4x^2y^5+1
Final Answer
z''_{xx} (x,y)=6x-8y^5
z''_{yy} (x,y)=6x-80x^2y^3
z''_{xy} (x,y)=z''_{yx}(x,y)=6y-40xy^4
Solution
Coming soon…