How would you go about determining if this problem is true or false?

The second derivative test for functions of two variables yields no information about whether the point (2, -5/6) is an extreme or a saddle point for the function f(x, y) = x^2 + 6xy + 9y^2 + x + 3y + 1.











True





or





FalseHow would you go about determining if this problem is true or false?
you need to find the hessian, and f_xx


if hessian =0 then it is true.


if hessian is not 0, then it is false.How would you go about determining if this problem is true or false?
uhm... R u always trying to burn ur brain on a Sunday afternoon or is ur cable turned off?