This book is a life saver! if you have one of those evil professors who like to assign the super challenging problems all of the time this book helps. Breaks each problem down step by step. Not of course this book is not perfect, there are times where it seems like it is being extremely too thorough on a problem but honestly who cares! dope buy, if you are debating on getting it, but it!
I think these manuals are a great investment when taking math classes. This one (and the other manual for this book) in particular is great because it often shows the work done to get the solutions so you can actually learn how to solve the problem. Sometimes there is no easy way to check your work and sometimes you come across a problem that isn't explained in the text so having this resource has saved me a lot of hassle over my 3 quarters of calculus. Absolutely worth the price!