Recent content by funzsquare

so 0,1 maximum -1,1 inconclusive

up!

anyone?

0,1 inconclusive -1,1 maximum?

[12x^2-4 0] -2 0 do i need to find the eigenvalues?

fxx=12x^2-4 fyy=-2 fyx=0 fxy=0 correct?

i thought of finding the stationary point. square matrix of second-order partial derivatives. fx=4x^3-4x fy=-2y+2 is this correct?

so i use the 2x2 matrix? do i equate the 4x^3-4x=0 & -2y+2=0? sry as i am new just start learning.

urgent! second derivative test for functions of 2 variables Homework Statement f(x,y)=x^4 - y^2 - 2x^2 + 2y - 7 Homework Equations classify points (0,1) and (-1,1) as local maximum, local minimum or inclusive The Attempt at a Solution f(x,0)=4x^3 - 0 - 4x + 0 - 0 = 4x^3-4x...