No, the PMBOK Guide is a guide not a study tool. It provides information and good practices for project management. What you need to know to pass the exam is why, when and how activities are done.
The exam is also psychological, relaxing and drawing on your knowledge of managing people and how they work.
Yes, you will have to memorize some formulas but know the processes are more important. Take the time to take a lot of practice exams to learn how to read the questions for the most correct answer.
