Well, our class recently started learning limits, and I'm having some troubles with two of the questions from the homework.
The first question is:
State the value of the limit of the function: f(x) = 4/5+e^(1/x)
lim f(x) for x --> 0+
I got 4/5+e^(1/0+) = 4/5+e^(infinity) = 4/5+infinity....I said the answer was infinity, but that was wrong.
The other question involves finding the limits of functions that have square roots in them. I was wondering if there's any 'general' way of solving those sorts of functions, since I have four of those questions, and I'm unsure of how to go about those.
Anyhow, the second question is: Find the limit for:
lim for x --> -infinity squareroot(9x^6-x)/x^3+6
I really have no idea how to go about this question, so any help is greatly appreciated!