We have a block (a*b*c) with volume of 1 m^3. There are 2 questions:
write surface area of block as function of a and b
find a and b in a way so that surface will be as big as possible
I had luck solving similar problems in the past using derivatives, like surface of garden, etc. But with this one i have no luck. If someone could help me out it would be great. I have an exam in like 4 hours but it doesn't matter if you answer later because it is bugging me, i really want to know the answer. I looked at similar problem with Cylinder but there its easier because you can express surface and volume with only 2 variables, and then if your volume is given at the start, you can easily delete 1 variable and then solve the problem easily.
ps: this problem is taken from this years exam btw