If you have access to this resource, treat it with respect. Do not just download it to your hard drive to gather digital dust. Print out the sections you struggle with. Work through the problems linearly. Use the solved answers as a mirror to reflect your weaknesses.
Check the PDF's solution. Did you get the right answer? If yes, check your notation. If no, find the exact line where you diverged from the solution. Was it a missing constant? A wrong trig identity? If you have access to this resource, treat it with respect
But what exactly is this legendary document? Why is it so "hot"? And more importantly, how can you use it to move from failing partial fractions to mastering triple integrals? check your notation. If no