00:01
We're trying to locate the absolute extreme of 4g.
00:05
First, let's take the derivative.
00:06
This will allow us to find the critical points.
00:10
Using the power rule, the derivative would be 3 fifths theta to the negative 2 fifths power, or 3 over 5 theta to the 2 fifths power.
00:30
Our critical numbers would occur where the g prime value is zero, or where the function is non -differential.
00:38
Well, g -prime is never going to be zero because we have a fraction, and fraction to zero at the top is zero.
00:45
But in this case, the top is three.
00:48
It is, though, non -differentiable if we would be dividing by three...