The information is not online. (weird I know)

"It is an official department recommendation to study RA" was on the first slide of my 3rd year micro lectures, due to the proofs required at an honours level. (I don't have my lecture slides with me so I can't upload)

Here is a snippet of the document we received pre-honours regarding the level of calculus you need. (I tried to attach a picture but it doesn't work for some reason..)

"Advanced Micro will extensively use calculus and will be much more rigorous than the subjects in the first three years. Even though we still care about economics in Advanced Micro and do not care about math in itself, math is the main language of economics (that statement goes beyond Advanced Micro) and one of our goals in Advanced Micro is to make you comfortable using this language.

In calculus, almost everyone knows how to take a derivative, calculate first order conditions or integrate. However, these skills may be somewhat rusty. Unfortunately, in the lectures we will not have time to go through the calculations step-by-step.

Most students aren't very comfortable with derivatives that may take 1-2 pages of algebra to solve. So some calculus practice is recommended before starting the semester. Students should feel comfortable using the product/chain/quotient rule for functions that are large and unwieldy. My best advice here is practice, practice, and practice. Grab a methods textbook or Google calculus problems and get cracking. Exactly the same thing applies to integrals: we will use the fundamental theorem of calculus, chain rules, substitutions, integration by parts, etc. and this may occasionally involve functions with more than one variable.

Later in the semester, we will use the implicit function theorem. Again, although it will be mentioned what it is and how to use it, we will not spend time practicing using it. "