I know this is a simple derivative, and I'm in calc 3, but I can't seem to figure this one out....
Okay, well that's really small. It's e^t-1/t in case you can't see it.
Have you tried using the quotient rule?
The rule states that:
For any function composed of a quotient of two other functions, here denoted by , the derivative is:
...So do the substitution.
If you haven't covered the quotient rule, then reply and I'll try another approach