Hello,Originally Posted by diudiu
as I understand your text right, you want some information about:
I've attached a diagram of this function.
The domain is a subset of the real numbers which are allowed with your function. There are a few restrictions, which you have to consider:
1. Division by zero is forbidden.
2. Squareroot of a negative number is not a real number.
3. Logarithms of zero or negative numbers are not real.
Your fuction doesn't deal with all these restrictions . Thus the domain of your function is
What bothers me a little bit is: Why do you believe that the domain is
The derivative of your function is (Don't forget to use the chain rule!):
You'll get an extreme value (maximum or minimum) of this function if the derivative equals zero:
Multiply by the denominator and afterwards square both sides of the equation. You'll get:
E(57.735) = 285.0085