Well the first part of the questions ask to use partial derivatives and incorporating the constraint into the function to be minimized. While the second part asks to use Lagrange mulitpliers.
Hey,
This problem i need to use partial derivatives to solve but not Lagrange mulitpliers. My main problem is just setting it up:
A building in the shape of a rectangular box is to have a volume of 12,000 cubic feet. It is estimated that the annual heating and cooling costs will...