Given the surface z2−x2−2y2=0z^2 - x^2 - 2y^2 = 0z2−x2−2y2=0, find ∂2z∂x2\frac{\partial^2 z}{\partial x^2}∂x2∂2z at the point (1,0,1)(1, 0, 1)(1,0,1).
−1-1−1
000
111
222