I just had a brief glance through your exam 1 solutions, and all the solutions look right in general. There is a minor typo on Question 5b where -2 should be +2 I think. For Question 6bii, I think that it is important to explicitly state that x≥0 to justify the answer. For Question 7b, the domain should be noted x∈R\{1}. For Question 8b, the domain restriction should be considered as it was in Question 8a. For Question 8cii, the use of integral notation is a bit dodgy. Overall though, this is a great set of solutions that I know will be an important resource for exam preparation, so thanks @charl.
