How do I study all this in 2.5 days?

You already fucked up. I'm serious, if you haven't been reviewing this shit over the semester and expect to learn all of this material ( assuming you have to know more than surface knowledge) in 2.5 days then the best you can hope for is half assed knowledge in every one of those categories. Once you fuck up, take it as a lesson. Don't disrespect math like that.

How much math have you taken so far

>>8535977
Grab a bullet and leave it sitting on your textbook overnight to absorb the information. Then take a gun and shoot the bullet into your brain. BAM, easy As and fresh, wet nerd pussy everywhere you go.

>>8535982
well :/

>>8535985
It's been a year but I've done an equivalent course which covered Sets, Permutations, Limits, Differentiation, first order equations.

Its definitely possible

>>8535996
How?

Torrent books on proofs which should cover basic set theory. A linear algebra book will go over permutation and combinations. A book on calc 1 and diffy q should help with the rest. Simply pull an all nighter, this is basic shit

Drink some tea or coffee or whatever floats your boat and take it step by step. step by step. step by step.