A cuboid tank is open at the top and the internal dimensions of its base are x m and 2x m.
The height is h m.
The volume of the tank is V cubic metres and the volume is fixed. Let S mē denote the internal surface area of the tank.
S in terms of x and h
S in terms of V and x
Sub
The maximal domain of S in terms of V and x is
If find the maximum value of S if
I'm stuck here, can anyone please help?
Here's a visual representation of the cuboid