I am from engineering background and I am currently studying calculus. I had a question from assignment to be solved from a course on coursera but I could not do it. People have posted solution in the discussion but I cannot understand it. The question is as follows:
Minimize the following function using the Lagrangean method: \begin{cases} f(x,y) = 6x+\frac{96}{x}+\frac{4y}{x}+\frac{x}{y}\\ x+y=6 \end{cases} Can anyone help me in understanding the approach of how to apply Lagrangean method here. Thank you.