Find the maximum and minimum values of f(x,y)=xy
subject to y22+x24=1
Write the Lagrange function in the form f(x,y)=λg(x,y)
So far I've got x=√2 or 2√2 and y=1,−1 or y=2,−2
I'm kinda stuck from here and not sure what to do next, can anyone please help me with the question?