(a) Find the first-order partial derivatives,

of the function z = 2x² + y² − 12x − 8y + 50 and hence find the stationary point.
(b) Find the second-order partial derivatives,and hence show that the stationary point is a minimum.

Transcribed Image Text:

дz дг дх ду a²z a°z and ax²’ ay² ахду