Estimate the change in the values of the function \(f(x,y)=-…
Estimate the change in the values of the function \(f(x,y)=-2y^2+3x^2+xy\) when \((x,y)\) changes from (1,-2) to (1.05, -1.9). Simplify your answer completely and enter it in the answer box below. \(\Delta z=\)
Read Details