Studying Advanced Subjects Without Answers

[DartomicTech]

You could work out the problems and submit them for review at PF. Show your work and approach to get feedback.

This advice is almost the same as what I was going to give. I was going to say to go to a local college's math tutor department, while it is not busy, and ask if someone will check your work. In my experience, they just assume that I go to the school. Once you know what the right solution is, whether you figured it out, or received it from the tutor, or received it from here, put it in a notebook Then refer to it when you practice to use as a reinforcement to your response for the exercise.