### Question:

An email from a Calculus student:

Hi Tom,

First, I want to sincerely thank you for the support of your wonderful programs. You’ve inspired a knowledge of calculus that my prof cannot.

I’ve got a problem to find the extremas of an exponential function over a given closed interval but don’t know which program to use. Here’s the problems:

### f(x) = (3x-1)e^(-x), on the interval [0, 2]

and

### f(x) = (ln (x+1))/(x+1), on the interval [0, 2]

any advice would be greatly appreciated!

Thanks!

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